c++ - 当我尝试连接两个字符串时出错

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7年前关闭。




我有两个字符串，我想对其加以概括，因此，我使用了这段代码
char* a = "Hel"; char* b = "lo"; strcat(a,b);，但是当我运行我的应用程序时，它显示此错误Access violating writing location

最佳答案

它们都是(a和b)字符串文字-您无法写入它们。实际上，您根本不应该使用char *a = "Hel";；您应该使用char const *a = "Hel";，在这种情况下，代码甚至都不会编译。

尝试这样的事情:

std::string a = "Hel";
std::string b = "lo";

std::string c = a + b;

C++中的strcat(即使正确使用)充其量也令人怀疑。