错误 C4996 ‘scanf’: This function or variable may be unsafe. Consider using scanf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.解决方法

1.把scanf改成scanf_s(不推荐,这个方法是vs自己定义的,在其他编辑器里不可以使用,降低了代码的可移植性)

2.在代码最前面加#define _CRT_SECURE_NO_WARNINGS 1(推荐)

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C4996‘scanf‘: This function or variable may be unsafe. Consider using scanf_s in