一个挺简单的数字排序。。怎么把字符类型的数字转化为数字类型的数字。。var number=new Array("12","20","35","40","85","9","102");
for(a in number)
for(b in number)
if(number[a]>number[b])
{var temp=number[b];
number[b]=number[a];
number[b]=temp;}
document.write("排列后为:"+number);这一段,输出的就是 排列后为:12,20,35,40,85,9,102 。。
for(a in number)
for(b in number)
if(number[a]>number[b])
{var temp=number[b];
number[b]=number[a];
number[b]=temp;}
document.write("排列后为:"+number);这一段,输出的就是 排列后为:12,20,35,40,85,9,102 。。
alert(Number("1"));
//输出1
alert(Number("a"));
//输出NaN
改成document.write("排列后为:"+Number(number));..
var number=new Array("12","20","35","40","85","9","102");
for(a in number)
a = Number(a);
function compare(a,b){
return a-b;
}
number.sort(compare);
document.write("排列后为:"+number);先转为数字,再排序