摘要： 为什么下面这段代码#include <string.h>void main(){ string aaa= "abcsd d"; printf("looking for abc from abcdecd %s\n", (strcmp(aaa,"abc")) ? "Found" : "Not Found");}不能正确执行，说是string类型没有定义而下面：#include <string>using namespace std;void main(){ string aa 阅读全文