为什么老是运行成功输出错误？
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
do{
count++;
num/=10;
}
while(num>0);
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;
do{
count++;
num/=10;
}
while(num>0);
System.out.println("它是个"+count+"位的数!");
}
}
2020-03-18
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