Question

求javascript脚本语言求出1到100之间所有偶数之和的代码？

Answer 1

<script language="javascript">
var result = 0;
for (i=1;i<=100;i+=2)
{
result=result+i;
}
alert(result);
</script>

Answer 2

<script language="javascript">
var result;
for (result =1;result <=100;result ++)
{if (result %2 == 0) <br/>{<br/> result+=result<br/>}
}alert(result);</script>

Answer 3

var sum=0;
for(var i=0;i<=100;i+=2)sum+=i;
console.log(sum);

Answer 4

var ji = 0;
var ou = 0;
for(i=1;i<=100 ;i++){
if(i%2 != 0){

ji = ji+i;//奇数

}

else{
ou = ou+i;//奇数

}
}
console.log("奇数为" + ji);
console.log("偶数为" + ou);