为什么scanf输入字符串时报错

scanf输入字符串时报错可能有几个原因。首先，如果使用scanf函数而不是scanf_s函数，在某些编译器中可能会被认为是不安全的，因此可能会报错。这就是为什么在vs中建议使用scanf_s函数的原因。改为char a，这样就可以容纳最多20个字符的输入。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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