regEnv

代码说明：

说明：  如果已知很多环境变量，每次换机器都是相同配置，环境变量配置窗口操作觉得麻烦，可以考虑这个直接注册。 只需要在reg.txt中按行写入：环境变量名=环境变量值(If many environment variables are known, each machine change is the same configuration, environment variables configuration window operation is troublesome, you can consider this direct registration. Just write in reg. TXT by line: environment variable name = environment variable value)