求助,請問講沒while條件設置為mynum==0的時候為何只輸出 數(shù)字6 的結果?
<script type="text/javascript">
? ? var mynum =6;//mynum初值化數(shù)值為6
? ? do
{
document.write("數(shù)字:"+mynum+"<br/>");
mynum=mynum-1;
}
while(mynum == 0)
</script>
</head>
<script type="text/javascript">
? ? var mynum =6;//mynum初值化數(shù)值為6
? ? do
{
document.write("數(shù)字:"+mynum+"<br/>");
mynum=mynum-1;
}
while(mynum == 0)
</script>
</head>
2015-02-05
舉報
2015-03-20
while(mynum == 0)相當于布爾類型判斷,false,條件為假不能成立,所以跳出循環(huán)
2015-02-05
while(!(mynum==0))