Ⅰ 如何查看本机开放的网络端口
1、在键盘上按下组合键win+r打开运行对话框。
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2、在打开的对话框中输入CMD字样。
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3、按下enter键，打开cmd命令行窗口，在命令行中输入：netstat-na字样。
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4、按下回车键，就会显示本地连接以及打开的端口了。
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