错误1
cin.sync()在VS中失效!
C++的标准中, cin.sync()是清空缓冲区,但是实际的实现取决于编译器.
如果使用vc++或者g++编译器,是可以的, 但是使用vs中的编译器,就不可以.
使用自定义的clearBuff();
#include <iostream> #include <Windows.h> #include <stdio.h> using namespace std; void clearBuff() { char tmp; while ((tmp = getchar()) != '\n'); } int main(void) { int age = 0; int height = 0; //身高, 单位:cm cout << "请输入年龄: " << endl; cin >> age; if (cin.fail()) { cout << "输入失败，应该输入一个整数" << endl; cin.clear(); //cin.sync(); clearBuff(); } cout << "请输入身高: " << endl; cin >> height; cout << "年龄: " << age << endl; cout << "身高:" << height << endl; system("pause"); return 0; }
错误2
int a[3];
a = {1, 2, 3}; //错误
a[3] = 100;
错误3错误2
int a[3];
a = {1, 2, 3}; //错误
a[3] = 100;
string s;
s = 3.14 * 100 * 100;
int name[32];
scanf(“%s”, name);
