public class WhileDemo {
public static void main(String[] args) {
int sum = 0;
int m = 20;
int n = 100;
// 使用while计算M+...+N:
while (m <= n) {
sum = sum + m;
m++;
}
System.out.println(sum);
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杨森-ys
public class WhileDemo {
public static void main(String[] args) {
int sum = 0;
int m = 20;
int n = 100;
// 使用while计算M+...+N:
while (m <= n) {
sum = sum + m;
m++;
}
System.out.println(sum);
}
}