var main = document.body;
//創建鏈接
var a = document.createElement("a");
function createa(url,text)
{
a.href=url;
a.innerHTML=text;
main.appendChild(a);
}
// 調用函數創建鏈接
createa("http://www.baidu.com","百度一下");
//創建鏈接
var a = document.createElement("a");
function createa(url,text)
{
a.href=url;
a.innerHTML=text;
main.appendChild(a);
}
// 調用函數創建鏈接
createa("http://www.baidu.com","百度一下");
2019-09-05
//創建數組
var arr= ['*','##',"***","&&","****","##*"];
arr[7]="**";
//顯示數組長度
//alert(arr.length)
arr[1]=arr[7];
arr[3]="****";
arr.length=4;
//將數組內容輸出,完成達到的效果。
for(i=0;i<arr.length;i++){
document.write(arr[i]+"<br/>");
}
var arr= ['*','##',"***","&&","****","##*"];
arr[7]="**";
//顯示數組長度
//alert(arr.length)
arr[1]=arr[7];
arr[3]="****";
arr.length=4;
//將數組內容輸出,完成達到的效果。
for(i=0;i<arr.length;i++){
document.write(arr[i]+"<br/>");
}
<script type="text/javascript">
var mynum =6;//mynum初值化數值為6
do{
document.write("數字:"+mynum+"<br/>");
mynum=mynum-1;
}
while( mynum >0 && mynum<=6);
</script>
var mynum =6;//mynum初值化數值為6
do{
document.write("數字:"+mynum+"<br/>");
mynum=mynum-1;
}
while( mynum >0 && mynum<=6);
</script>
2019-08-30