if (!this || this._isDestroyed) { return; } 此处this指vm

修改vueRouter的prototypeconst originalPush = VueRouter.prototype.push VueRouter.prototype.push = function push (location, onResolve, onReject) { if (onResolve || onReject) retu[...]

1 找到工程项目的build.gradle2 注释掉 jcenter() ，改用国内阿里云的maven库地址这里注意，只需要分别修改 buildscript 和 allprojects 的 repositories 即可// Top-level build file where you can add configuration options c[...]

查看所有可更新的模块：　　pip list --outdated更新某一个模块：　　　　　pip install --upgrade module_name指定更新源更新模块　　　　pip install --upgrade -i https://pypi.douban.com/simple moudle_name安装对应的模块：　　　　　pip [...]

console.log(process.env.NODE_ENV);if(process.env.NODE_ENV==='production'){axios.defaults.baseURL = "./api/";}else{axios.defaults.baseURL = "http://localhost/mal[...]