vim报错E45: ‘readonly‘ option is set (add ! to override)

其实这是权限造成的，文件设置成了只读权，只读文件修改前需要执行sudo，但是已经修改了，如何强制保存呢？只需要保存的时候执行如下命令：

:wq!以上命令是强制保存退出，然后就可以了！

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vim报错E45: ‘readonly‘ option is set (add ! to override)

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