答案错了 错在哪。。。
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
while(num!=0){
num = num / 10;
count++;
}
System.out.println("它是个"+count+"位的数!");
}
}
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public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
while(num!=0){
num = num / 10;
count++;
}
System.out.println("它是个"+count+"位的数!");
}
}
2019-06-26
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