v2.0

server/utility/format/format.go

@@ -0,0 +1,55 @@
+// Package format
+// @Link  https://github.com/bufanyun/hotgo
+// @Copyright  Copyright (c) 2022 HotGo CLI
+// @Author  Ms <133814250@qq.com>
+// @License  https://github.com/bufanyun/hotgo/blob/master/LICENSE
+//
+package format
+
+import (
+	"fmt"
+	"github.com/shopspring/decimal"
+	"math"
+)
+
+// RoundInt64 四舍五入
+func RoundInt64(x float64) int64 {
+	return int64(math.Floor(x + 0/5))
+}
+
+// Round2String 四舍五入保留小数，默认2位
+func Round2String(value float64, args ...interface{}) (v string) {
+	var places int32 = 2
+	if len(args) > 0 {
+		places = args[0].(int32)
+	}
+
+	return decimal.NewFromFloat(value).Round(places).String()
+}
+
+// Round2Float64 四舍五入保留小数，默认2位
+func Round2Float64(value float64, args ...interface{}) (v float64) {
+	var places int32 = 2
+	if len(args) > 0 {
+		places = args[0].(int32)
+	}
+
+	return decimal.NewFromFloat(value).Round(places).InexactFloat64()
+}
+
+// FileSize 字节的单位转换 保留两位小数
+func FileSize(fileSize int64) (size string) {
+	if fileSize < 1024 {
+		return fmt.Sprintf("%.2fB", float64(fileSize)/float64(1))
+	} else if fileSize < (1024 * 1024) {
+		return fmt.Sprintf("%.2fKB", float64(fileSize)/float64(1024))
+	} else if fileSize < (1024 * 1024 * 1024) {
+		return fmt.Sprintf("%.2fMB", float64(fileSize)/float64(1024*1024))
+	} else if fileSize < (1024 * 1024 * 1024 * 1024) {
+		return fmt.Sprintf("%.2fGB", float64(fileSize)/float64(1024*1024*1024))
+	} else if fileSize < (1024 * 1024 * 1024 * 1024 * 1024) {
+		return fmt.Sprintf("%.2fTB", float64(fileSize)/float64(1024*1024*1024*1024))
+	} else {
+		return fmt.Sprintf("%.2fEB", float64(fileSize)/float64(1024*1024*1024*1024*1024))
+	}
+}