c++入门事例,c++入门教程#include <iostream>
using namespace std;
int main()
{
double height,weight;
cout << "请输入您的身高：" << endl;
cin >> height;
while(1)
{
if (height <= 0){
cout << "身高输入格式错误，请重新输入您的身高：" &...
c++ 保留两位小数#include using namespace std;
int main()
{
double spd = 22.518744;
spd=( (double)( (int)( (spd+0.005)*100 ) ) )/100;
cout<<spd<<endl;
return 0;
}c++入门学习，c++入门教程...