char a[2] = { '1','2' }; printf("%d", strcmp(a, "12"));
结果为 1
一个没有结束符，一个有结束符，为什么没有的比有的大？
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Char is generally regarded as an unsigned integer, a[2] is a random value, and there are only two situations: greater than 0 and equal to 0.
Most of the time, a[2] is greater than '
Similar to the previous question - that question, my answer was trampled by the crowd - strings are strings, and character arrays are character arrays. The strcmp function requires you to pass in a string, because only strings have
char a[] = {'1', '2', 'rrreee'}; printf("%d", strcmp(a, "12"));
, it performs an out-of-bounds access to memory. a
a
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Char is generally regarded as an unsigned integer, a[2] is a random value, and there are only two situations: greater than 0 and equal to 0.
Most of the time, a[2] is greater than '
Similar to the previous question - that question, my answer was trampled by the crowd - strings are strings, and character arrays are character arrays. The strcmp function requires you to pass in a string, because only strings have
The result you get is not actually 1, but a random value. Because the strcmp function does not know the length of, it performs an out-of-bounds access to memory.
a