??why
public?class?HelloWorld{
public?static?void?main(String[]?args){
int?num?=?999;
int?count?=?0;
if(num>=0&&num<999999999){
????while(num!=0){
????????count++;
????????if?(num%=0)
????else?num+=1;
System.out.println("它是個(gè)"+?count+"位的數(shù)！");
????break;
else{
System.out.println("out");???
????
}
????}
}
}
}
2020-09-14
寫的太亂，結(jié)構(gòu)有問題，語(yǔ)法也不準(zhǔn)確。按你的意思調(diào)整下
if(num>=0&&num<=999999999){ ???????while(num!=0){ ???????num/=10; ???????count++; ???????} ???????System.out.println("它是個(gè)"+?count+"位的數(shù)！"); }else{ System.out.println("out"); }