count++跟num/=10什么意思?
if (num >= 0 && num<=999999999){ while(num != 0){ count++; num/=10; } System.out.println("它是个"+ count+"位的数!"); } else{ System.out.println("输入有误!"); }
if (num >= 0 && num<=999999999){ while(num != 0){ count++; num/=10; } System.out.println("它是个"+ count+"位的数!"); } else{ System.out.println("输入有误!"); }
2015-10-16
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