D:\liujiahao\zuoye>javac HelloWorld.java
D:\liujiahao\zuoye>java HelloWorld
public class HelloWorld{
public static void main(String[] args){
int sum= 0;
int num= 2;
do{
sum =sum + num;
num =num = 2;
}while (num <= 50);
System.out.println("50以内的偶数之和为:"+ sum);
}
}
Its_forever
Its_forever
第五先生
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