composer安装问题

Getting the following when attempting a new install of composer:

The “https://getcomposer.org/versions” file could not be downloaded: failed to open stream: Operation timed out
解决办法：
在自定义的composer目录下：
1、新建composer.bat文件，并写入：

	@echo OFF
	:: in case DelayedExpansion is on and a path contains ! 
	setlocal DISABLEDELAYEDEXPANSION
	php "%~dp0composer.phar" %*

2、下载composer.phar文件，官网就有,放置同一目录，如下。

下载地址

3、安装完成，进行测试（完美）：