3 years ago · 6de8edbb1d
--- a/1.mp4
+++ b/1.mp4
--- a/C与C++/基本知识.md
+++ b/C与C++/基本知识.md
@@ -0,0 +1,50 @@
 
				+# `cpp`基本知识
			
 
				+## 函数相关
			
 
				+### 双冒号
			
 
				+1. 指定作用域 前面是作用域等类名称,后面接类的成员名称
			
 
				+例: A,B表示两个类,A,B中都有成员numb
			
 
				+    A::numb
			
 
				+    B::numb
			
 
				+2. 指定全局作用域的变量
			
 
				+例: 指定 使用全局变量或者局部变量
			
 
				+```cpp
			
 
				+#include <stdio.h>
			
 
				+
			
 
				+int count = 0; //全局变量 0
			
 
				+
			
 
				+void main()
			
 
				+{
			
 
				+ 
			
 
				+ int count = 10; //局部变量10
			
 
				+ 
			
 
				+ printf("count =%d\n",count);//局部变量屏蔽了全局变量 所以输出结果是10
			
 
				+ {
			
 
				+  int count = 20;
			
 
				+  
			
 
				+  printf("count =%d\n",::count); //作用域符号指出引用全局变量0
			
 
				+  //::sort
			
 
				+ }
			
 
				+}
			
 
				+```
			
 
				+3. 另外，双冒号也常常用于在类变量内部作为当前类实例的元素进行表示
			
 
				+例:
			
 
				+```cpp
			
 
				+class CA {
			
 
				+public:
			
 
				+  int ca_var;
			
 
				+  int add(int a, int b);
			
 
				+  int add(int a);
			
 
				+};
			
 
				+ 
			
 
				+//作用域
			
 
				+int CA::add(int a, int b)
			
 
				+{
			
 
				+  return a + b;
			
 
				+}
			
 
				+ 
			
 
				+//另外，双冒号在类变量内部作为当前类实例的元素进行表示
			
 
				+int CA::add(int a)
			
 
				+{
			
 
				+  return a + ::ca_var;
			
 
				+}
			
 
				+``` 
			
--- a/css/文本相关.md
+++ b/css/文本相关.md
@@ -42,4 +42,10 @@ div{
 
				 
			
 
				 ```css
			
 
				 text-indent:2em;
			
 
				+```
			
 
				+## 禁止用户选中文字
			
 
				+``` css
			
 
				+.not-select{
			
 
				+    user-select:none;
			
 
				+}
			
 
				 ```
			
--- a/express/post接受请求带进度条方法.js
+++ b/express/post接受请求带进度条方法.js
@@ -0,0 +1,40 @@
 
				+/*
			
 
				+ * @Description: post请求携带
			
 
				+ * @Autor: kindring
			
 
				+ * @Date: 2022-01-11 14:32:31
			
 
				+ * @LastEditors: kindring
			
 
				+ * @LastEditTime: 2022-01-11 14:33:04
			
 
				+ * @LastDescript: 
			
 
				+ */
			
 
				+const formidable = require('formidable');
			
 
				+app.post('/up', function(req, res) {
			
 
				+    console.log('接受到上传文件');
			
 
				+    //上传数据
			
 
				+    let form = new formidable.IncomingForm();
			
 
				+    var allFile = [];
			
 
				+    form.uploadDir = './tmp';
			
 
				+    form.type = true;
			
 
				+    form.on('progress', function(bytesReceived, bytesExpected) { //在控制台打印文件上传进度
			
 
				+        let progressInfo = {
			
 
				+            value: bytesReceived, //当前进度
			
 
				+            total: bytesExpected //总进度
			
 
				+        };
			
 
				+        let bar_progress = Math.floor((progressInfo.value / progressInfo.total) * 100);
			
 
				+        console.log(`当前进度: ${bar_progress}`);
			
 
				+        //res.write(JSON.stringify(progressInfo));
			
 
				+    }).on('file', function(filed, file) {
			
 
				+        allFile.push([filed, file]); //收集传过来的所有文件
			
 
				+    }).on('end', function() {
			
 
				+        console.log('文件上传完成 ok');
			
 
				+        // res.send('ok');
			
 
				+    }).on('error', function(err) {
			
 
				+        console.error('上传失败：', err.message);
			
 
				+    }).parse(req, function(err, fields, files) {
			
 
				+        console.log(fields);
			
 
				+        console.log(files);
			
 
				+        if (err) {
			
 
				+            console.log(`接收失败${err.message}`);
			
 
				+        }
			
 
				+    })
			
 
				+
			
 
				+})
			
--- a/express/热刷新导入.md
+++ b/express/热刷新导入.md
@@ -0,0 +1 @@
 
				+# 在文件发生改变时自动更新依赖
			
--- a/index.html
+++ b/index.html
@@ -0,0 +1,113 @@
 
				+<!DOCTYPE html>
			
 
				+<html lang="en">
			
 
				+
			
 
				+<head>
			
 
				+    <meta charset="UTF-8">
			
 
				+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
			
 
				+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
			
 
				+    <title>Document</title>
			
 
				+    <style>
			
 
				+        * {
			
 
				+            margin: 0;
			
 
				+            padding: 0;
			
 
				+            font-size: 0
			
 
				+        }
			
 
				+        
			
 
				+        .i {
			
 
				+            width: 200px;
			
 
				+            height: 200px;
			
 
				+            /* border: 1px solid orangered; */
			
 
				+            background-color: #000;
			
 
				+            /* float: left; */
			
 
				+            margin: 0;
			
 
				+            border: 0
			
 
				+        }
			
 
				+        
			
 
				+        .div {
			
 
				+            margin: 200px;
			
 
				+            width: 200px;
			
 
				+            padding: 100px;
			
 
				+            border: 1px solid black;
			
 
				+            position: relative;
			
 
				+        }
			
 
				+        
			
 
				+        .div2 {
			
 
				+            margin: 200px;
			
 
				+            width: 200px;
			
 
				+            padding: 100px;
			
 
				+            border: 1px solid black;
			
 
				+            float: left;
			
 
				+        }
			
 
				+    </style>
			
 
				+</head>
			
 
				+
			
 
				+<body>
			
 
				+    <video src="./1.mp4" width="500" height="500" controls></video>
			
 
				+    <img src="./1_answer_a.png" alt="" class="i">
			
 
				+    <div class="div2">
			
 
				+        <div class="div">
			
 
				+
			
 
				+            <div class="div">
			
 
				+
			
 
				+                <img src="./1_answer_b.png" alt="" class="i" onclick="drag()">
			
 
				+            </div>
			
 
				+        </div>
			
 
				+    </div>
			
 
				+    <div class="div2">
			
 
				+
			
 
				+        <div class="div2">
			
 
				+
			
 
				+            <div class="div2">
			
 
				+
			
 
				+                <img src="./1_answer_b.png" alt="" class="i" onclick="drag()">
			
 
				+            </div>
			
 
				+        </div>
			
 
				+    </div>
			
 
				+</body>
			
 
				+<script>
			
 
				+    function drag(e) {
			
 
				+        e = e || window.event;
			
 
				+        console.log(e.target);
			
 
				+        console.log(e.target.offsetLeft);
			
 
				+        console.log(getOffsetLeft(e.target));
			
 
				+    }
			
 
				+
			
 
				+    function getOffsetLeft(obj) {
			
 
				+        let tmp = obj.offsetLeft;
			
 
				+        let val = obj.offsetParent;
			
 
				+        while (val != null) {
			
 
				+            tmp += val.offsetLeft;
			
 
				+            val = val.offsetParent;
			
 
				+        }
			
 
				+        return tmp;
			
 
				+    };
			
 
				+
			
 
				+    let arr = [
			
 
				+            [0, 1, 1],
			
 
				+            [1, 1, 0],
			
 
				+            [1, 0, 0]
			
 
				+        ]
			
 
				+        [
			
 
				+            [1, null, null],
			
 
				+            [0, 0, 1],
			
 
				+            [1, null, null]
			
 
				+        ]
			
 
				+        [
			
 
				+            [1, 0, 1],
			
 
				+            [1, 0, 1],
			
 
				+            [0, 1, 0]
			
 
				+        ]
			
 
				+
			
 
				+    function isOk(arr) {
			
 
				+        let total = 0
			
 
				+        for (var i = 0; i < arr.length; i++) {
			
 
				+            // if(){
			
 
				+
			
 
				+            // }
			
 
				+            total += i;
			
 
				+        }
			
 
				+        console.log(i)
			
 
				+    }
			
 
				+</script>
			
 
				+
			
 
				+</html>
			
--- a/js/node相关/md5.js
+++ b/js/node相关/md5.js
@@ -0,0 +1,21 @@
 
				+/*
			
 
				+ * @Description: 
			
 
				+ * @Autor: kindring
			
 
				+ * @Date: 2022-01-24 14:47:56
			
 
				+ * @LastEditors: kindring
			
 
				+ * @LastEditTime: 2022-01-24 14:48:03
			
 
				+ * @LastDescript: 
			
 
				+ */
			
 
				+// 引入crypto模块
			
 
				+const crypto = require('crypto');
			
 
				+
			
 
				+// 规定使用哈希算法中的MD5算法
			
 
				+const hash = crypto.createHash('md5');
			
 
				+
			
 
				+// 可任意多次调用update(),效果相当于多个字符串相加
			
 
				+hash.update('987653abc');
			
 
				+hash.update('123456789');
			
 
				+
			
 
				+// 最终加密的字符串为'987653abc123456789',hash.digest('hex')表示输出的格式为16进制
			
 
				+const a = hash.digest('hex');
			
 
				+console.log(a); // c3b93d3065f112b02ac70e09762469b0
			
--- a/js/node相关/require.js
+++ b/js/node相关/require.js
@@ -0,0 +1,33 @@
 
				+/*
			
 
				+ * @Description: require相关操作
			
 
				+ * @Autor: kindring
			
 
				+ * @Date: 2022-02-11 15:40:55
			
 
				+ * @LastEditors: kindring
			
 
				+ * @LastEditTime: 2022-02-11 17:18:37
			
 
				+ * @LastDescript: 
			
 
				+ */
			
 
				+
			
 
				+
			
 
				+// 导入文件
			
 
				+require(pathString);
			
 
				+
			
 
				+// 清除缓存
			
 
				+require.cache('')
			
 
				+delete require.chche['modulePath'];
			
 
				+
			
 
				+// 使用清除缓存示例
			
 
				+// 在一定时间内没有调用一个函数会自动删除缓存,用于刷新参数
			
 
				+
			
 
				+let waitTime = 60 * 1000;
			
 
				+let timer = null;
			
 
				+
			
 
				+function MotorData() {
			
 
				+    let motorConfig = require('../configs/motor.json');
			
 
				+    if (timer) {
			
 
				+        clearTimeout(timer);
			
 
				+    }
			
 
				+    timer = setTimeout(() => {
			
 
				+        delete require.catch['../configs/motor.json']
			
 
				+    }, waitTime);
			
 
				+    return motorConfig;
			
 
				+}
			
--- a/js/promise研究/all.js
+++ b/js/promise研究/all.js
@@ -0,0 +1,28 @@
 
				+function fn1() {
			
 
				+    return new Promise((resolve, reject) => {
			
 
				+        setTimeout(() => {
			
 
				+            resolve(1);
			
 
				+        }, 1000)
			
 
				+    })
			
 
				+}
			
 
				+
			
 
				+function fn2() {
			
 
				+    return new Promise((resolve, reject) => {
			
 
				+        setTimeout(() => {
			
 
				+            reject(2);
			
 
				+        }, 2000)
			
 
				+    })
			
 
				+}
			
 
				+
			
 
				+
			
 
				+function main() {
			
 
				+    let f1e, f2e;
			
 
				+    let f1 = fn1().catch(err => { f1e = err });
			
 
				+    let f2 = fn2().catch(err => { f2e = err });
			
 
				+    Promise.all([f1, f2]).then(val => {
			
 
				+        console.log(val);
			
 
				+        console.log(f1e);
			
 
				+        console.log(f2e);
			
 
				+    })
			
 
				+}
			
 
				+main();
			
--- a/redis/redis.md
+++ b/redis/redis.md
@@ -0,0 +1,9 @@
 
				+# redis
			
 
				+## 配置redis
			
 
				+### 设置连接密码
			
 
				+1. 设置密码
			
 
				+```shell
			
 
				+config get requirepass
			
 
				+config set requirepass "gcz2460"
			
 
				+``` 
			
 
				+3. 设置
			
--- a/webrtc/学习记录.md
+++ b/webrtc/学习记录.md
@@ -0,0 +1,9 @@
 
				+# `webrtc`相关代码学习记录
			
 
				+## metaRtc项目源码阅读
			
 
				+> 阅读目标,成功试用metaRtc实现与浏览器进行通信,主要阅读为`metaRtc`的`C`版本,以`libmetartccore2`内的代码为标准
			
 
				+
			
 
				+### 目录结构
			
 
				+1. yargwebrtc
			
 
				+   1. yarnCRecvTrack.h
			
 
				+   2. 
			
 
				+    
			
--- a/奇思妙想/1.mp4
+++ b/奇思妙想/1.mp4
--- a/奇思妙想/index.html
+++ b/奇思妙想/index.html
@@ -42,6 +42,7 @@
 
				 </head>
			
 
				 
			
 
				 <body>
			
 
				+    <video src="./1.mp4" width="500" height="500" controls></video>
			
 
				     <img src="./1_answer_a.png" alt="" class="i">
			
 
				     <div class="div2">
			
 
				         <div class="div">
			
--- a/日常/22-01-24
+++ b/日常/22-01-24
@@ -0,0 +1,6 @@
 
				+# 2022-01-24
			
 
				+## todoList
			
 
				+| 代办 | 详细 | 状态 |
			
 
				+| - | - | - |
			
 
				+| 登陆接口 | 用户登陆接口 |  |
			
 
				+|
		`@@ -0,0 +1 @@`
		`+# 在文件发生改变时自动更新依赖`