floatx

Documentation

Index

• func FormatFloat(num float64, decimal int) (float64, error)
• func FormatFloatCeil(num float64, decimal int) (float64, error)
• func FormatFloatFloor(num float64, decimal int) (float64, error)

Functions

func FormatFloat

func FormatFloat(num float64, decimal int) (float64, error)

FormatFloat 保留decimal位小数，舍弃尾数，无进位运算 先乘，trunc之后再除回去，就达到了保留N位小数的效果

func FormatFloatCeil

func FormatFloatCeil(num float64, decimal int) (float64, error)

FormatFloatCeil 保留decimal位小数, 舍弃的尾数不为0，强制进位

func FormatFloatFloor

func FormatFloatFloor(num float64, decimal int) (float64, error)

FormatFloatFloor 保留decimal位小数, 强制舍弃尾数