m0_64837135的博客

如果函数返回值类型为int,返回的是本体的值 int fun() { int a = 10086; return a; } int main(int argc, const char *argv[]) { int ret = fun(); //int ret = 10086; cout << "ret = " << ret << endl; return 0; }//执行结果：输出ret = 10086 如果