方法

1.新建TXT文档

2.写下内容

TASKKILL /F /IM wechat.exe
start "" "C:\Program Files (x86)\Tencent\WeChat\WeChat.exe"
start "" "C:\Program Files (x86)\Tencent\WeChat\WeChat.exe"

3.想开几个就写几个start "" "C:\Program Files (x86)\Tencent\WeChat\WeChat.exe"

4.保存后，把后缀修改为bat，运行