php7运行提示计算机丢失VCRUNTIME140.dll
从PHP官网下载的windows版PHP7，
在命令行运行php-cgi.exe或者php.exe -v时，提示"无法启动此程序，因为计算机中丢失VCRUNTIME140.dll。
尝试重新安装该程序以解决此问题"
只要我们细心一点，可以看到我们下载的PHP7的压缩包，会有VC14这个字眼，
其实，我们在http://windows.php.net下载PHP的时候，左边有“温馨提示”的，很多朋友都错过了。
这里有解析VC9、VC11、VC14是什么东西，还提供了微软官网链接。
我们把VC14下载下来安装，再运行PHP7，就不会报错了。
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