九九乘法表
<script type="text/javascript">
for(var i = 1; i < 10; i++) {
for(var j = 1; j <= i; j++) {
var z = "<h1>" + j + "X" + i + "=" + i * j + "</h1>";
document.write(z);
if(i == j) {
var x = "<div></div>";
document.write(x);
}
}
</ script>
水仙花数
<script type="text/javascript">
for(var s=100;s<1000;s++){
var gs=s;
var bs=parseInt(s/100);
var ss=parseInt((s-bs*100)/10);
if((gs*gs*gs)+(bs*bs*bs)+(ss*ss*ss)==s){
document.write(s+" , ");
}
}
</script>
报七游戏
for(var qi=1;qi<100;qi++){
if(qi!=7&&qi%7!=0&&parseInt(qi/10)!=7){
document.write(qi+" ");
}
}
冒泡排序
var arry=[10,24,64,100,87,15,36,94,74,21,0,21];
document.write("原数组为："+arry+"<br />");
document.write("排序后的数组为：");
for(var j=0;j<arry.length-1;j++){
for(var i=0;i<arry.length-1-j;i++){
if(arry[i]>arry[i+1]){
var a =arry[i];
arry[i]=arry[i+1];
arry[i+1]=a;
}
}}
求阶乘
document.write("求阶乘：<br />");
var val=prompt("请输入一个正整数")
var jie=1;
for(var i=1;i<=val;i++){
jie=jie*i;
}
document.write(val+" 的阶乘是： "+jie);
