<C++ Primer_5th>习题_1.9

//编写程序，使用while循环将50到100的整数相加。#include<iostream>int main(){int sum = 0;int i = 50;while (i <= 100){sum += i;++i;}std::cout << "50到100之间的整数之和为: " << sum << std::endl;system("pause");return 0;}//使用for循环编写#include<iostream>int main(){int sum = 0;for (int i = 50; i <= 100; ++i){sum += i;}std::cout << "50到100之间的整数之和为: " << sum << std::endl;system("pause");return 0;}