From a69ee9e6e9bc4589c7cdd313f3afcc115d75af13 Mon Sep 17 00:00:00 2001
From: lishengsong <2353142548@qq.com>
Date: Sat, 14 Jul 2018 17:34:39 +0800
Subject: [PATCH 1/9] file
Signed-off-by: lishengsong <2353142548@qq.com>
---
code/file/data/index.txt | 0
code/file/data/index1.txt | 0
code/file/data/line.txt | 0
code/file/file.js | 17 ++++++++
code/file/open.js | 34 ++++++++++++++++
code/file/read.js | 37 ++++++++++++++++++
code/file/readfile.js | 32 +++++++++++++++
code/file/write.js | 53 +++++++++++++++++++++++++
code/http/css/style.css | 4 ++
code/http/html/index.html | 13 ++++++
code/http/js/index.js | 3 ++
code/http/serverThree.js | 76 ++++++++++++++++++++++++++++++++++++
code/stream/data/read.txt | 1 +
code/stream/data/request.txt | 6 +++
code/stream/data/test.txt | 1 +
code/stream/data/write.txt | 1 +
code/stream/drain.js | 24 ++++++++++++
code/stream/pipe.js | 17 ++++++++
code/stream/rAndW.js | 21 ++++++++++
code/stream/readable.js | 19 +++++++++
code/stream/readstream.js | 26 ++++++++++++
code/stream/unshift.js | 15 +++++++
22 files changed, 400 insertions(+)
create mode 100644 code/file/data/index.txt
create mode 100644 code/file/data/index1.txt
create mode 100644 code/file/data/line.txt
create mode 100644 code/file/file.js
create mode 100644 code/file/open.js
create mode 100644 code/file/read.js
create mode 100644 code/file/readfile.js
create mode 100644 code/file/write.js
create mode 100644 code/http/css/style.css
create mode 100644 code/http/html/index.html
create mode 100644 code/http/js/index.js
create mode 100644 code/http/serverThree.js
create mode 100644 code/stream/data/read.txt
create mode 100644 code/stream/data/request.txt
create mode 100644 code/stream/data/test.txt
create mode 100644 code/stream/data/write.txt
create mode 100644 code/stream/drain.js
create mode 100644 code/stream/pipe.js
create mode 100644 code/stream/rAndW.js
create mode 100644 code/stream/readable.js
create mode 100644 code/stream/readstream.js
create mode 100644 code/stream/unshift.js
diff --git a/code/file/data/index.txt b/code/file/data/index.txt
new file mode 100644
index 0000000..e69de29
diff --git a/code/file/data/index1.txt b/code/file/data/index1.txt
new file mode 100644
index 0000000..e69de29
diff --git a/code/file/data/line.txt b/code/file/data/line.txt
new file mode 100644
index 0000000..e69de29
diff --git a/code/file/file.js b/code/file/file.js
new file mode 100644
index 0000000..3f7d0e4
--- /dev/null
+++ b/code/file/file.js
@@ -0,0 +1,17 @@
+var fs = require('fs');
+
+/**
+ *同步的方式读取
+ **/
+var data = fs.readFileSync('./data/index.txt','utf8');
+console.log(data);
+//异步
+fs.readFile('template.txt','utf8',function(err,data){
+ console.log(data);
+});
+
+//异步
+fs.readFile('data.txt','utf8',function(err,data){
+ console.log(data);
+});
+
diff --git a/code/file/open.js b/code/file/open.js
new file mode 100644
index 0000000..79ef6b2
--- /dev/null
+++ b/code/file/open.js
@@ -0,0 +1,34 @@
+/**
+ *
+ */
+
+var fs = require('fs');
+//fs.readFileSync('line.txt');
+/**
+ * process.stdout.write(); 标准输出
+ process.stdin; 标准输入
+ process.stderr; 错误输出
+ */
+/**
+ * open
+ */
+
+var fd = fs.openS ync('./data/line.txt', 'r');
+var buffer = new Buffer(10);
+/**
+ * fd 文件描述符
+ * buffer 存放数据的容器
+ * offset 往buffer里写的偏移量
+ * length 长度
+ * position 文件的当前读取位置
+ */
+fs.readSync(fd, buffer, 0, 10,0);
+console.log(buffer.toString());
+
+
+
+
+
+
+
+
diff --git a/code/file/read.js b/code/file/read.js
new file mode 100644
index 0000000..24cae6e
--- /dev/null
+++ b/code/file/read.js
@@ -0,0 +1,37 @@
+
+//方法一
+/*var fs = require('fs');
+var buffer = new Buffer(100000);
+fs.open('line.txt','r',function(err,fd){
+ fs.read(fd,buffer,0,6,0,function(err,bytesRead){
+ console.log('bytesRead',bytesRead);
+ fs.read(fd,buffer,6,6,6,function(err,bytesRead){
+ console.log('bytesRead',bytesRead);
+ console.log(buffer.toString());
+ })
+ })
+});*/
+
+var fs = require('fs');
+var list = [];
+
+fs.open('./data/line.txt','r',function(err,fd){
+ var pos =0;
+ function read(){
+ var buffer = new Buffer(3);
+ fs.read(fd,buffer,0,3,pos,function(err,bytesRead){
+ list.push(buffer.slice(0,bytesRead));
+ //console.log(buffer);
+ pos += bytesRead;
+ if(bytesRead>0)
+ read();
+ else{
+ var result = Buffer.concat(list);
+ console.log(result.toString());
+ }
+ });
+ }
+ read();
+});
+
+console.log('ddd');
\ No newline at end of file
diff --git a/code/file/readfile.js b/code/file/readfile.js
new file mode 100644
index 0000000..74e6b27
--- /dev/null
+++ b/code/file/readfile.js
@@ -0,0 +1,32 @@
+/**
+ * readFileSync 读取文件
+ */
+var fs = require('fs');
+/**
+ * O_RDONLY 只读
+ * O_SYNC 同步
+ * O_RDWR 可读可写
+ * O_TRUNC truncate 清空文件
+ * O_CREAT 如果原来没有就创建
+ * O_WRONLY 只写
+ * O_EXCL excludsive 排它操作
+ * O_APPEND 追加
+ */
+/**
+ * path 文件的路径
+ * options
+ * encoding 文件的编码
+ * flag
+ */
+var data = fs.readFileSync('data/index.txt',{encoding:'utf8',flag:'r'});
+
+fs.readFile('index1.txt',{encoding:'utf8',flag:'w'},function(err,data){
+ if(err)
+ console.error(err);
+});
+
+
+
+
+
+
diff --git a/code/file/write.js b/code/file/write.js
new file mode 100644
index 0000000..0f4639d
--- /dev/null
+++ b/code/file/write.js
@@ -0,0 +1,53 @@
+/**
+ * fs.write 写入文件
+ */
+
+
+var fs = require('fs');
+/*fs.open('line.txt','w',function(err,fd){
+ fs.write(fd,new Buffer('发生的'),6,6,0,function(err,bytesWritten){
+ console.log(bytesWritten);
+ })
+});*/
+
+/*
+var buffer = new Buffer('很高兴认识你');
+fs.open('line.txt','w',function(err,fd){
+ console.log('first',fd);
+ fs.write(fd,buffer,6,6,6,function(err,bytesWritten){
+ // console.log(bytesWritten);
+ fs.write(fd,buffer,0,6,0,function(err,bytesWritten){
+ //console.log(bytesWritten);
+ fs.close(fd);
+ fs.open('line.txt','w',function(err,fd){
+ console.log('second',fd);
+ });
+ })
+ })
+});
+*/
+/*fs.writeFile('./data/line.txt','哈哈', {flag:'w', encoding: 'utf8'}, function (err) {
+ console.log(err) ;
+});*/
+
+//fs.appendFile('./data/line.txt', new Buffer('第二行'));
+
+/**
+ * base64
+ * base是把3个8位字节 转成4个6位字节 然后在6位字节齐前补两个0
+ */
+/*
+var buffer = new Buffer('神奇的事情');
+fs.open('./data/line.txt','w',function(err,fd){
+ console.log('first',fd);
+ fs.write(fd,buffer,6,6,6,function(err,bytesWritten){
+ // console.log(bytesWritten);
+ fs.write(fd,buffer,0,6,0,function(err,bytesWritten){
+ //console.log(bytesWritten);
+ fs.close(fd);
+ fs.open('./data/line.txt','w',function(err,fd){
+ console.log('second',fd);
+ });
+ })
+ })
+});*/
diff --git a/code/http/css/style.css b/code/http/css/style.css
new file mode 100644
index 0000000..912b919
--- /dev/null
+++ b/code/http/css/style.css
@@ -0,0 +1,4 @@
+body {
+ background: red;
+ color:red;
+}
\ No newline at end of file
diff --git a/code/http/html/index.html b/code/http/html/index.html
new file mode 100644
index 0000000..ff2fe42
--- /dev/null
+++ b/code/http/html/index.html
@@ -0,0 +1,13 @@
+
+
+
+
+ Title
+
+
+
+ babby.
+
+
+
+
\ No newline at end of file
diff --git a/code/http/js/index.js b/code/http/js/index.js
new file mode 100644
index 0000000..bee907d
--- /dev/null
+++ b/code/http/js/index.js
@@ -0,0 +1,3 @@
+document.querySelector('#btn').addEventListener('click',function () {
+ alert('nihao');
+});
\ No newline at end of file
diff --git a/code/http/serverThree.js b/code/http/serverThree.js
new file mode 100644
index 0000000..4b09c01
--- /dev/null
+++ b/code/http/serverThree.js
@@ -0,0 +1,76 @@
+var http = require('http');
+var fs = require('fs');
+const mime = require('mime'); //第三方类库
+var url = require('url'); //对URL进行处理,把字符串转成对象
+
+var server = http.createServer(serve);
+
+function serve(request, response) {
+ console.log(request.method);
+ console.log(request.url);
+ response.statusCode = 200;
+
+ response.setHeader("token", "dd");
+ var urlObj = url.parse(request.url, true); //true则把值转成对象
+ console.log(urlObj.query);
+ var pathname = urlObj.pathname;
+ console.log(pathname);
+
+ /*if(url == '/css/style.css') {
+ response.setHeader('Content-Type','text/css;charset=utf8');
+ fs.readFile('../html/css/style.css', function (err, data) {
+ if(err) throw err;
+ response.write(data); //读取并写入响应体中
+ response.end();
+ });
+ } else if(url == '/js/index.js'){
+ response.setHeader('Content-Type','application/x-javascript;charset=utf8');
+ fs.readFile('../html/js/index.js', function (err, data) {
+ if(err) throw err;
+ response.write(data); //读取并写入响应体中
+ response.end();
+ });
+ } else {
+ response.setHeader('Content-Type','text/html;charset=utf8');
+ fs.readFile('../html/index.html', function (err, data) {
+ if(err) throw err;
+ response.write(data); //读取并写入响应体中
+ response.end();
+ });
+ }*/
+ //使用mime获取content-type
+ if (pathname == '/') {
+ response.setHeader('Content-Type', 'text/html;charset=utf8');
+ fs.readFile('./html/index.html', function (err, data) {
+ if (err) throw err;
+ response.write(data); //读取并写入响应体中
+ response.end();
+ });
+ } else if (pathname == '/clock') {
+ var counter = 0;
+ var int = setInterval(function () {
+ response.write(new Date().toString());
+ counter ++;
+ if(counter == 5) {
+ clearInterval(int);
+ response.end();
+ }
+ }, 1000);
+ } else if (pathname == '/favicon.ico') {
+
+ } else {
+ stat(pathname, response);
+ }
+ // response.write("好的好的话");
+}
+
+function stat(pathname, response) {
+ console.log(mime.getType);
+ response.setHeader('Content-Type',mime.getType(pathname)+';charset=utf8');
+ fs.readFile('.'+pathname, function (err, data) {
+
+ response.write(data); //读取并写入响应体中
+ response.end();
+ });
+}
+server.listen(8080,'localhost');
\ No newline at end of file
diff --git a/code/stream/data/read.txt b/code/stream/data/read.txt
new file mode 100644
index 0000000..e2e107a
--- /dev/null
+++ b/code/stream/data/read.txt
@@ -0,0 +1 @@
+123456789
\ No newline at end of file
diff --git a/code/stream/data/request.txt b/code/stream/data/request.txt
new file mode 100644
index 0000000..2670351
--- /dev/null
+++ b/code/stream/data/request.txt
@@ -0,0 +1,6 @@
+HTTP/1.1 200 OK
+Date: Sat, 09 Jan 2016 03:36:48 GMT
+Content-Type: text/html; charset=utf-8
+Transfer-Encoding: chunked
+
+name=zfpx&age=6
\ No newline at end of file
diff --git a/code/stream/data/test.txt b/code/stream/data/test.txt
new file mode 100644
index 0000000..34220d9
--- /dev/null
+++ b/code/stream/data/test.txt
@@ -0,0 +1 @@
+datadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadat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adatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadatadata
\ No newline at end of file
diff --git a/code/stream/data/write.txt b/code/stream/data/write.txt
new file mode 100644
index 0000000..384eda4
--- /dev/null
+++ b/code/stream/data/write.txt
@@ -0,0 +1 @@
+123456789123456789
\ No newline at end of file
diff --git a/code/stream/drain.js b/code/stream/drain.js
new file mode 100644
index 0000000..695cb0e
--- /dev/null
+++ b/code/stream/drain.js
@@ -0,0 +1,24 @@
+var fs = require('fs');
+var ws = fs.createWriteStream('./data/test.txt',{
+ highWaterMark:16
+});// 16k
+writeMillion(ws,'data','utf8',function(){});
+function writeMillion(writer,data,encoding,callback){
+ var i = 1000000;
+ write();
+ function write(){
+ var ok = true;
+ do{
+ i -= 1;
+ if(i == 0){
+ writer.write(data,encoding,callback);
+ }else{
+ ok = writer.write(data,encoding);
+ console.log(ok);
+ }
+ }while(i>0 && ok);
+ if(i>0){
+ writer.once('drain',write);
+ }
+ }
+}
diff --git a/code/stream/pipe.js b/code/stream/pipe.js
new file mode 100644
index 0000000..f2d6e60
--- /dev/null
+++ b/code/stream/pipe.js
@@ -0,0 +1,17 @@
+var fs = require('fs');
+var rs = fs.createReadStream('./data/read.txt');//64k
+var ws = fs.createWriteStream('./data/write.txt');// 16k
+rs.pipe(ws);
+
+rs.on('data',function(data){
+ var flag = ws.write(data);
+ if(!flag){
+ console.log("pause");
+ rs.pause();
+ }
+});
+
+ws.on('drain',function(){
+ console.log("resume");
+ rs.resume();
+});
diff --git a/code/stream/rAndW.js b/code/stream/rAndW.js
new file mode 100644
index 0000000..c88e757
--- /dev/null
+++ b/code/stream/rAndW.js
@@ -0,0 +1,21 @@
+var fs = require('fs');
+var rs = fs.createReadStream('./data/read.txt');
+var ws = fs.createWriteStream('./data/write.txt',{
+ autoClose:true
+});
+ws.on('open',function(){
+ console.log('写入文件已经打开');
+});
+rs.on('data',function(data){
+ ws.write(data);
+});
+rs.on('end',function(){
+ ws.end('写入完成',function(){
+ console.log('写入完毕');
+ console.log('共写入%d字节',ws.bytesWritten);
+ });
+});
+
+ws.on('close',function(){
+ console.log('文件关闭');
+});
\ No newline at end of file
diff --git a/code/stream/readable.js b/code/stream/readable.js
new file mode 100644
index 0000000..af2ccea
--- /dev/null
+++ b/code/stream/readable.js
@@ -0,0 +1,19 @@
+var fs = require('fs');
+var rs = fs.createReadStream('./data/read.txt',{
+ start:0,end:1, highWaterMark:2
+});
+var buffers = [];
+rs.on('readable',function(){
+ console.log('=====readable=====');
+ var buff;
+ //rs.read(读多少个字节)
+ while(null != (buff = rs.read(1))){
+ buffers.push(buff);
+ }
+});
+
+rs.on('end',function(){
+ var data = Buffer.concat(buffers);
+ console.log(data.toString());// 123456
+});
+
diff --git a/code/stream/readstream.js b/code/stream/readstream.js
new file mode 100644
index 0000000..2dac7bb
--- /dev/null
+++ b/code/stream/readstream.js
@@ -0,0 +1,26 @@
+var fs = require('fs');
+var rs = fs.createReadStream('./data/read.txt',{
+ start:0, end:5, encoding: 'utf8'
+});
+
+/**
+ * setEncoding也可以的
+ * rs.setEncoding()
+ */
+
+rs.on('data', function (data) {
+ console.log(data);
+ rs.pause();//暂停
+ setTimeout(function () {
+ rs.resume();
+ }, 3000);
+});
+
+rs.on('end', function () {
+ console.log('读取完成');
+});
+
+rs.on('close', function () {
+ console.log('关闭');
+});
+
diff --git a/code/stream/unshift.js b/code/stream/unshift.js
new file mode 100644
index 0000000..6620be5
--- /dev/null
+++ b/code/stream/unshift.js
@@ -0,0 +1,15 @@
+var fs = require('fs');
+var rs = fs.createReadStream('./request.txt');
+//解析头部
+var StringDecoder = require('string_decoder').StringDecoder;
+function parseHeader(callback) {
+ var headers = '';
+ rs.on('readable', onReadable);
+ var decoder = new StringDecoder();
+ function onReadable() {
+ var chunk;
+ while (null != (chunk = rs.read())) {
+ var
+ }
+ }
+}
\ No newline at end of file
From 9efef911aad45b8b9ba284b516e0ecb371cae834 Mon Sep 17 00:00:00 2001
From: lishengsong <2353142548@qq.com>
Date: Mon, 16 Jul 2018 17:33:19 +0800
Subject: [PATCH 2/9] =?UTF-8?q?=E6=96=B0=E5=A2=9Etcp=E3=80=81udp?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: lishengsong <2353142548@qq.com>
---
code/stream/unshift.js | 24 ++++-
code/tcp/chatServer.js | 49 ++++++++++
...6\345\261\202\346\250\241\345\236\213.png" | Bin 0 -> 62808 bytes
...p\345\214\205\346\240\274\345\274\217.png" | Bin 0 -> 27499 bytes
...6\345\272\224\347\224\250\345\261\202.png" | Bin 0 -> 39338 bytes
...0\350\276\223\347\244\272\344\276\213.png" | Bin 0 -> 84383 bytes
code/tcp/images/2.mac.png | Bin 0 -> 16221 bytes
...0\345\235\200\347\273\204\346\210\220.png" | Bin 0 -> 26982 bytes
...0\345\235\200\345\210\206\347\261\273.png" | Bin 0 -> 61171 bytes
.../images/5.tcp\345\244\264\351\203\250.png" | Bin 0 -> 128523 bytes
...5\346\216\247\345\210\266\344\275\215.png" | Bin 0 -> 90996 bytes
...6\345\214\205\346\225\264\344\275\223.png" | Bin 0 -> 98877 bytes
...1\346\254\241\346\217\241\346\211\213.png" | Bin 0 -> 85661 bytes
...3\346\254\241\351\200\200\345\207\272.png" | Bin 0 -> 83150 bytes
.../images/http\346\212\223\345\214\205.jpg" | Bin 0 -> 322142 bytes
.../images/tcp\346\212\223\345\214\205.jpg" | Bin 0 -> 188678 bytes
code/tcp/tcpClient.js | 12 +++
code/tcp/tcpServer.js | 32 +++++++
code/tcp/tcpSocket.js | 25 +++++
code/tcp/tcpSocketFour.js | 20 ++++
code/tcp/tcpSocketThree.js | 19 ++++
code/tcp/tcpSocketTwo.js | 20 ++++
code/tcp/udpClient.js | 13 +++
code/tcp/udpServer.js | 9 ++
md/7.tcp.md | 86 ++++++++++++++++++
25 files changed, 306 insertions(+), 3 deletions(-)
create mode 100644 code/tcp/chatServer.js
create mode 100644 "code/tcp/images/1.\345\210\206\345\261\202\346\250\241\345\236\213.png"
create mode 100644 "code/tcp/images/10.udp\345\214\205\346\240\274\345\274\217.png"
create mode 100644 "code/tcp/images/11.\345\217\221\351\202\256\344\273\266\345\272\224\347\224\250\345\261\202.png"
create mode 100644 "code/tcp/images/12.tcp\344\274\240\350\276\223\347\244\272\344\276\213.png"
create mode 100644 code/tcp/images/2.mac.png
create mode 100644 "code/tcp/images/3.IP\345\234\260\345\235\200\347\273\204\346\210\220.png"
create mode 100644 "code/tcp/images/4.IP\345\234\260\345\235\200\345\210\206\347\261\273.png"
create mode 100644 "code/tcp/images/5.tcp\345\244\264\351\203\250.png"
create mode 100644 "code/tcp/images/6.tcp\346\225\260\346\215\256\345\214\205\346\216\247\345\210\266\344\275\215.png"
create mode 100644 "code/tcp/images/7.tcp\346\225\260\346\215\256\345\214\205\346\225\264\344\275\223.png"
create mode 100644 "code/tcp/images/8.tcp\345\273\272\347\253\213\350\277\236\346\216\245\347\232\204\344\270\211\346\254\241\346\217\241\346\211\213.png"
create mode 100644 "code/tcp/images/9.tcp\345\233\233\346\254\241\351\200\200\345\207\272.png"
create mode 100644 "code/tcp/images/http\346\212\223\345\214\205.jpg"
create mode 100644 "code/tcp/images/tcp\346\212\223\345\214\205.jpg"
create mode 100644 code/tcp/tcpClient.js
create mode 100644 code/tcp/tcpServer.js
create mode 100644 code/tcp/tcpSocket.js
create mode 100644 code/tcp/tcpSocketFour.js
create mode 100644 code/tcp/tcpSocketThree.js
create mode 100644 code/tcp/tcpSocketTwo.js
create mode 100644 code/tcp/udpClient.js
create mode 100644 code/tcp/udpServer.js
create mode 100644 md/7.tcp.md
diff --git a/code/stream/unshift.js b/code/stream/unshift.js
index 6620be5..f4827f4 100644
--- a/code/stream/unshift.js
+++ b/code/stream/unshift.js
@@ -1,5 +1,5 @@
var fs = require('fs');
-var rs = fs.createReadStream('./request.txt');
+var rs = fs.createReadStream('./data/request.txt');
//解析头部
var StringDecoder = require('string_decoder').StringDecoder;
function parseHeader(callback) {
@@ -9,7 +9,25 @@ function parseHeader(callback) {
function onReadable() {
var chunk;
while (null != (chunk = rs.read())) {
- var
+ var str = decoder.write(chunk);
+ if (str.match(/\r\n\r\n/)) {
+ var splits = str.split(/\r\n\r\n/);
+ // shift() 方法用于把数组的第一个元素从其中删除,并返回第一个元素的值
+ headers += splits.shift();
+ rs.removeListener('readable', onReadable);
+ var remain = splits.join('\r\n\r\n');
+ var buf = new Buffer(remain, 'utf8');
+ if(buf.length) rs.unshift(buf);
+ callback(headers);
+ } else {
+ headers += str;
+ }
}
}
-}
\ No newline at end of file
+}
+parseHeader(function (header) {
+ console.log(header);
+ rs.on('data', function (data) {
+ console.log(header);
+ })
+});
\ No newline at end of file
diff --git a/code/tcp/chatServer.js b/code/tcp/chatServer.js
new file mode 100644
index 0000000..bd683bb
--- /dev/null
+++ b/code/tcp/chatServer.js
@@ -0,0 +1,49 @@
+/**
+ * 1.创建一个服务器
+ * 2. 客户端可以连接服务器
+ * 3.客户端可以发言,然后广播给大家
+ * 4.客户端连接和退出后都要通知大家。
+ * 5.显示当前的在线人数
+ */
+var net = require('net');
+var util = require('util');
+var clients = {};
+var server = net.createServer(function(socket){
+ var nickname;
+ console.log(nickname);
+ socket.setEncoding('utf8');
+ server.getConnections(function(err,count){
+ console.log(net.isIP());
+ socket.write('欢迎光临,当前在线'+count+'人,请输入用户名\r\n>');
+ });
+
+ socket.on('data',function(data){
+ //console.log(new Buffer(data));
+ data = data.replace(/\r\n/,'');
+ if(nickname){
+ broadcast(nickname,nickname+":"+data+'\r\n');
+ }else{
+ nickname = data; //在这里赋值了
+ clients[nickname] = socket;
+ broadcast(nickname,nickname+'加入了聊天室\r\n');
+ }
+ });
+ socket.on('end',function(){
+ broadcast(nickname,nickname+'离开了聊天室\r\n');
+ clients[nickname].destroy();
+ delete clients[nickname];
+ });
+ socket.on('error',function(){
+
+ });
+ socket.on('close',function(){
+
+ });
+});
+function broadcast(nickname,msg){
+ for(var name in clients){
+ if(nickname != name)
+ clients[name].write(msg);
+ }
+}
+server.listen(8089);
\ No newline at end of file
diff --git "a/code/tcp/images/1.\345\210\206\345\261\202\346\250\241\345\236\213.png" "b/code/tcp/images/1.\345\210\206\345\261\202\346\250\241\345\236\213.png"
new file mode 100644
index 0000000000000000000000000000000000000000..0e511d078422e861be87f452a121b20bda157033
GIT binary patch
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