Nodejs – npm安装永久冻结

我有npm奇怪的问题：安装过程永久冻结在加载阶段。

在安装nodejs之后，我尝试安装angular-cli，但是它停留在加载阶段：

c:\>npm install -g @angular/cli npm info it worked if it ends with ok npm info using npm@3.10.10 npm info using node@v6.11.3 npm info ok npm info it worked if it ends with ok npm info using npm@3.10.10 npm info using node@v6.11.3 npm info attempt registry request try #1 at 1:35:34 PM npm http request GET https://registry.npmjs.org/@angular%2fcli npm http 304 https://registry.npmjs.org/@angular%2fcli npm info addNameTag [ '@angular/cli', 'latest' ] [|||||..............] - loadRequestedDeps: info addNameTag [ '@angular/cli', 'latest' ] 

其他软件包安装也会发生同样的情况，例如Yarn：

 c:\>npm install -g yarn npm info it worked if it ends with ok npm info using npm@3.10.10 npm info using node@v6.11.3 npm info ok npm info it worked if it ends with ok npm info using npm@3.10.10 npm info using node@v6.11.3 npm info attempt registry request try #1 at 1:38:08 PM npm http request GET https://registry.npmjs.org/yarn npm http 304 https://registry.npmjs.org/yarn npm info addNameTag [ 'yarn', 'latest' ] [|||||..............] \ loadRequestedDeps: info addNameTag [ 'yarn', 'latest' ] 

请帮忙，可能是什么原因，如何解决？