Javascript十进制限制辅助 [英] Javascript decimal restriction assitance

问题描述

我在下面有此代码.许多结果往往以小数点结尾，并且看起来很乱.我想将它们限制为一个，可能两个.我环顾四周，但恐怕不知道自己在做什么.

I have this code below. A lot of the results tend to end in decimals, and it looks quite messy. I want to restrict them to just one, possibly two. I''ve had a look around, but I''m afraid I have no idea what I''m doing.

physical age is <script type="text/javascript">
x=(231-{INPUT})*2/3; // Change the value of the number here according to your IC year
document.write(x);
</script>.

推荐答案

x=(231-{INPUT})*2/3;
x= x.toFixed(2);

这会将x舍入到小数点后2位

This will round x to 2 decimal places

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