查人人中国名人网大漠孤鹰:怎样用javascript编辑出一百以内的所有质数并且用alert显示出来；显示结果每行5个。中间用逗号隔开
来源：百度文库 编辑：查人人中国名人网 时间：2024/05/05 09:42:28
<script language="javascript">
var sum=0,i;
i=3;
flw="";
while(sum<=100-3)
{
sum+=i;
flw+=","+sum
}
alert("alert"+"结果为"+flw);
</script>
用这种模式
var sum=0,i;
i=3;
flw="";
while(sum<=100-3)
{
sum+=i;
flw+=","+sum
}
alert("alert"+"结果为"+flw);
</script>
用这种模式
<SCRIPT LANGUAGE="JavaScript">
function test(){
var num = new Array();
var tmp = 0;
var tmp2 = 0;
var tmp3 = "";
for(var i =1;i<=100; i++){
tmp = 0;
for(var j =1;j<=i;j++){
if(i%j==0){
tmp++;
if(i == j && tmp == 2){
num[tmp2] = i;
tmp2++;
}
}
}
}
for(var k =0;k<num.length; k++){
if(k!=num.length-1){
tmp3 = tmp3 + num[k] + ","
}else{
tmp3 = tmp3 + num[k];
}
if(k%5==4){
tmp3 += "\n";
}
}
alert(tmp3);
}
</SCRIPT>