example_while.cpp

// example: while语句（p10）

#include <iostream>

int main()
{
	int sum = 0, val = 1;

	// 只要val的值小于等于10，while循环就会持续执行
	while (val <= 10) {
		sum += val;		// 将sum + val赋予sum
		++val;	// 将val加1
	}

	std::cout << "Sum of 1 to 10 inclusive is " << sum << std::endl;

	return 0;
}