c++ primer学习指导(6)--1.4.1while语句

代码文件位whilecount.cpp

 1 #include <iostream>
 2 
 3 int main()
 4 {
 5     int sum = 0, val = 1;
 6     // val小于等于10时,while后的代码块会持续循环运行
 7     while (val <= 10) {
 8         sum += val;  // 等价于 将sum+val的值赋值给sum
 9         ++val;       // val加1
10     }
11     std::cout << "Sum of 1 to 10 inclusive is " 
12               << sum << std::endl;
13 
14     return 0;
15 }

编译运行

演示视频:https://www.bilibili.com/video/av81985740/ 

原文地址:https://www.cnblogs.com/niao-ge/p/12148234.html