整理一部分比较常用的正则表达式、后续会持续更新1、手机号码的校验constphoneReg/^13,4,5,6,7,8,9099$/constphoneStr1'18886233487'console.log(phoneReg.test(phoneStr1))//trueconstphoneStr2'17283017203

!(https://oscimg.oschina.net/oscnet/361b5f13d45b403ebff39a63013a7644.png)JavaScript对象的创建!(https://oscimg.oschina.net/oscnet/c5d755a12cca4c628dba372da7d7ab3b.jpg)在Ja

下载安装模块pip3installmysql使用操作1.在python中使用sql语句!(https://oscimg.oschina.net/oscnet/c111848376b1150aad13a6b75ffd73110a4.jpg)!(https://oscimg.oschina.net/oscnet/a9bb046bf3

1官网内容!(https://oscimg.oschina.net/oscnet/b4692a35356c34718f1b70f6f13d6fd2923.png)2看一张图一目了然!(https://img2018.cnblogs.com/blog/567850/201902/567850201902221329596814516

1.添加2.mdconfig(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fwww.92csz.com%2Ftag%2Fmdconfig) a t malloc s 14g u13.列举4.mdconfig l u15.创建分区6.

前提：下载安装MongoDB，!(https://oscimg.oschina.net/oscnet/9ab49da444d8a3fa13effcf70cf333772a8.png)安装完成之后，找到安装路径，点击如下文件打开界面：!(https://oscimg.oschina.net/oscnet/712fe4fb4428391093

ES6（ECMAScript6）学习资料!(https://oscimg.oschina.net/oscnet/e6a7c0c0c07343cc84915da5f722975c.png)前13节!(https://oscimg.oschina.net/oscnet/98654e66b75b4dc793

在一个报表中可以使用大量的对象，本次教程我们将对各报表对象进行介绍：图标名称描述!(http://evgetimg.osscnhangzhou.aliyuncs.com/Content/files/2016/9/7/812a13f185814d788c9e9328724311aa636088542754568967.png)"Te

!(https://oscimg.oschina.net/oscnet/465e227bf13b400db2d44eefba84ac10.png)Linux下的tr命令主要是用于文本的转换和删除功能。新建一个文本文件，test.txt内容如下：todayISSaturdaytommowisSumdaymyname