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                **代碼**: ~~~ #include <stdio.h> char* GetString1() { char p[] = "Hello World"; return p; } char* GetString2() { char *p = "Hello World"; return p; } int main() { printf("GetString1 returns: %s. \n", GetString1()); printf("GetString2 returns: %s. \n", GetString2()); return 0; } ~~~ (感謝網友提供的題目) **疑**:以上輸出結果是什么情況? ……………………………………………………………………………………………………………………………………………………… 解答:結果是GetString1()是亂碼,GetString2()是 “Hello World”。因為GetString1()返回的是是指向該函數作用域里的局部變量char p[]的首內存空間,而當函數返回到主函數時,該內存空間將會被釋放,所以P指向了一個無效的內存空間。而GetString2()中的p是指向全局對象(字符串“Hello World”)的,所以是“HelloWorld”. ======= welcome to my HomePage([*http://blog.csdn.net/zhanxinhang*](http://blog.csdn.net/zhanxinhang)) to have a?communication ======= ……………………………………………………………………………………………………………………………………
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