douyangcheng4965 2015-07-19 17:09
浏览 89
已采纳

如何格式化带有逗号和小数点后两位的货币?

I am trying to format some numbers as a currency, with commas and 2 decimal places. I've found "github.com/dustin/go-humanize" for the commas but it doesn't allow for specifying the number of decimal places. fmt.Sprintf will do the currency and decimal formatting but not the commas.

for _, fl := range []float64{123456.789, 123456.0, 123456.0100} {
    log.Println(humanize.Commaf(fl))
  }

Results:

123,456.789
123,456
123,456.01

I am expecting:

$123,456.79
$123,456.00
$123,456.01
  • 写回答

4条回答 默认 最新

  • doukuizuo1795 2015-07-20 19:57
    关注

    There is a good blog post about why you should never use floats to represent currency here - http://engineering.shopspring.com/2015/03/03/decimal/

    From their examples you can :

      d := New(-12345, -3)
      println(d.String())
    

    Will give you :

    -12.345
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(3条)

报告相同问题?

悬赏问题

  • ¥15 求差集那个函数有问题,有无佬可以解决
  • ¥15 【提问】基于Invest的水源涵养
  • ¥20 微信网友居然可以通过vx号找到我绑的手机号
  • ¥15 寻一个支付宝扫码远程授权登录的软件助手app
  • ¥15 解riccati方程组
  • ¥15 display:none;样式在嵌套结构中的已设置了display样式的元素上不起作用?
  • ¥15 使用rabbitMQ 消息队列作为url源进行多线程爬取时,总有几个url没有处理的问题。
  • ¥15 Ubuntu在安装序列比对软件STAR时出现报错如何解决
  • ¥50 树莓派安卓APK系统签名
  • ¥65 汇编语言除法溢出问题