前言：
当我们学到网络编程的时候，测试的时候要开多个client来测试，但是默认idea一个类只能运行一次。 这时就需要我们自己进行设置
这是默认情况一个类只能运行一次
修改Edit Configuration
Allow multiple instances
测试
‘Client‘ is not allowed to run in parallel.Would you like to stop the running one?
2022-05-12
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简介：
‘Client‘ is not allowed to run in parallel.Would you like to stop the running one?
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