誰能告訴我這代碼錯在哪?。?/h1>
int num = 999;
int j=0;
int i;
do{
??? i=num/10;
??? j++;
}
while(i>1);
System.out.println("它是個"+j+"位的數！");
int num = 999;
int j=0;
int i;
do{
??? i=num/10;
??? j++;
}
while(i>1);
System.out.println("它是個"+j+"位的數！");
2015-11-04
i沒有賦予初值
2015-11-09
照你這寫 j能加到繞地球一圈
?
2015-11-06
沒有循環啊
2015-11-04
package?Test11_04; public?class?test01?{ public?static?void?main(String[]?args)?{ int?num?=?999; int?j=0; do{ ????num=num/10; ????j++; } while(num>1); System.out.println("它是個"+j+"位的數！"); } }你這樣寫i永遠都是999/10=99