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作业

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package com.itranswarp.learnjava;

/**

 * while练习

 */

public class Main {

public static void main(String[] args) {

int sum = 0;

int m = 20;

int n = 100;

// FIXME: 使用while计算M+...+N:

while (m >= 20 && m <= n) {

sum = sum + m;

m ++;

}

System.out.println(sum);

}

}


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