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javascript [重复] 中的十进制减法问题
原标题:Decimal Subtraction problems in javascript [duplicate]
  • 时间:2012-05-23 05:20:01
  •  标签:
  • javascript
This question already has answers here:
Closed 11 years ago.

Possible Duplicate:
Is JavaScript s Math broken?

当在联署材料中我减去6.4-1.6 我得到4800000000000001的答案时, 但我需要4.8的答案而不使用Fixed ()、Pecision () 和 Math.wound () 。

谢谢

结晶晶体

最佳回答

在进行减法前将整数转换为整数,以避免浮点算术出现问题:

(6.4 * 10 - 1.6 * 10) / 10

“http://floating-point-gui.de/>每个程序员应该知道的关于浮动-point Airthmatic

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