{
console.log('我是奇数：'+num)
}
function oushu(num)
{
console.log('我是偶数：'+num)
}
for(var i=1i<=100i++)
{
if(i%2==0)
{
oushu(i)
}
else
{
jishu(i)
}
}
var num = prompt("请输入一个数字","")function fun(num){
var a = parseInt(num)
switch(a%2){
case 0:
document.write("是偶数")
break
case 1:
document.write("是奇数")
break
default:
alert("不是数字，请重新输入")
var num = prompt("请输入一个数字","")
fun(num)
break
}
}
fun(num)
