38 lines
1.3 KiB
Go
38 lines
1.3 KiB
Go
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package util
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import (
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"github.com/shopspring/decimal"
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"strings"
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)
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func Fen2Yuan(price int64) string {
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d := decimal.New(1, 2) //分除以100得到元
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result := decimal.NewFromInt(int64(price)).DivRound(d, 2).String()
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//fmt.Printf("输入值为：%d, 分转元后，精度为二的结果为：%s\n", price, result)
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return result
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}
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func FenToYuan00(price int64) string {
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d := decimal.New(1, 2) //分除以100得到元
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result := decimal.NewFromInt(int64(price)).DivRound(d, 2).String()
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if find := strings.Contains(result, "."); find {
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return result
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} else {
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return result + ".00"
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}
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}
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// 元转分,乘以100后，保留整数部分
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func Yuan2Fen(price float64) int64 {
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d := decimal.New(1, 2) //分转元乘以100
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d1 := decimal.New(1, 0) //乘完之后，保留2为小数，需要这么一个中间参数
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//df := decimal.NewFromFloat(price).Mul(d).DivRound(d1,2).String()
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//df := decimal.NewFromFloat(price).Mul(d).IntPart()
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//如下是满足，当乘以100后，仍然有小数位，取四舍五入法后，再取整数部分
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dff := decimal.NewFromFloat(price).Mul(d).DivRound(d1, 0).IntPart()
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//fmt.Printf("输入值为：%f, 简单的元转分后，取整数部分：%d\n", price, df)
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//fmt.Printf("输入值为：%f, 元转分后，若还有小数，需做四舍五入后，再取整数：%d\n", price, dff)
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return dff
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}
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