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- #include<stdio.h>
- #include<assert.h>
- char* my_strcpy(char* dest, const char* src) {
- assert(src);
- assert(dest);
- char* ret = dest;
- while (*src) {
- *dest++ = *src++;
- }
- *dest = *src;
- return ret;
- }
- int main() {
- char arr1[] = "abcdef";
- char arr2[20] = { 0 };
- my_strcpy(arr2, arr1);
- printf("%s\n", arr2);
- return 0;
- }
运行结果
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