wxingheng

[HTML 动态插入 svg](https://blog.csdn.net/yanyang1116/article/details/51830589)

wxingheng

[git-ssh](https://gitee.com/help/articles/4181#article-header0)

wxingheng

[如何解决“微信小程序”的Https要求](https://www.jianshu.com/p/00314ced475e)

wxingheng

**修改mysql时区**
[mysql 时区](https://www.cnblogs.com/shiqiangqiang/p/8393662.html)


**修改mysql默认字符集**

![image.png](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAqUAAAF+CAYAAAC7yWNDAAAgAElEQVR4AeydCZgVxdWwD+MIAyIqSlCCBpRFwYBgREQigoorKooKCAryySIYZRMlKuAPLnkCUYiJkhggIgaXAeFzYSe4sAgqoPIJKAZUCCoMiMg+//MeqGtz6e67zL0zd2bOeZ6Z7tvdVXXq7erb5546VVVmxowZ+fn5+bJ3715p06aN1K9fXz755BMxMQJGwAgYASNgBIyAETACYQROPfVU2bJlS9glvufOO+88mT9/vkyfPl2ys7PlqKOOkqwyZcrIgQMH9M83lR00AkbACBgBI2AEjIARMAJpIIANii2KZEmZMvrBHUhDeZalETACRsAIGAEjYASMgBE4ggD2Jz32+/fvl6z9+/bpBbhNTYyAETACRsAIGAEjYASMQGERwP7EW3pUdrZk8Q/BQjUxAkbACBgBI2AEjIARMAKFRQD7k5hSyc+XrPwDBwqrXCvHCBgBI2AEjIARMAJGwAgcRmDfvn3qLdWBTvTlW0zpYXzsgxEwAkbACBgBI2AEjECaCWB/ZmVlHfyjLDNI00zcsjcCRsAIGAEjYASMgBEIJKDGKaPvEYJMTYyAETACRsAIGAEjYASMQGERcNOSss0isJTue1ynJkbACBgBI2AEjIARMAJGoLAIRLrus7Lk4NB7JiwNMUo559fFjzFbVB7WM888U+rVqyfffPONLFq0SNmddNJJctFFF8mMGTPkxx9/jJvnGWecIQ0bNtTrf/rpJ3nzzTfjThvrQj89Y6VJ13k/XZo0aSKbN2+WL7/88ohi4+Hpl+cRGQUcOO200+S3v/2tVKtWTb799lsZP358wJXJH46nDn65p7NN+JVXXJ6xsPbiV6/oYw

wxingheng

[Mac下安装SecureCRT并激活](https://blog.csdn.net/qq_27563511/article/details/80918636)

wxingheng

[mac webbench](https://www.jianshu.com/p/0635ee94f7d8)


webbench -c 并发数 -t 运行测试时间 URL


webbench -t 60 -c 100 http://www.baidu.com/

wxingheng

```language
  /** 
     * getV(init, obj, 'children', 'children' ...)
     * @param init args
     * @returns {any}
     */
      const getV = (init, ...args) => args.length >=2 ? args.reduce((a, b) => a && a.hasOwnProperty(b) ? a[b]: init) : init
```

wxingheng

```language
/* 定义 */
.flex-def {
    display: -webkit-box; /* 老版本语法: Safari, iOS, Android browser, older WebKit browsers. */
    display: -moz-box; /* 老版本语法: Firefox (buggy) */
    display: -ms-flexbox; /* 混合版本语法: IE 10 */
    display: -webkit-flex; /* 新版本语法: Chrome 21+ */
    display: flex; /* 新版本语法: Opera 12.1, Firefox 22+ */
}

wxingheng

```language
Object.flatten = function(obj){
    var result = {};

    function recurse(src, prop) {
        var toString = Object.prototype.toString;
        if (toString.call(src) == '[object Object]') {
            var isEmpty = true;
            for (var p in src) {
                isEmpty = false;

wxingheng

```language
/*apply()方法*/
function.apply(thisObj[, argArray])

/*call()方法*/
function.call(thisObj[, arg1[, arg2[, [,...argN]]]]);
```

它们各自的定义：