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strto.go
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strto.go
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package gosupport
import (
"fmt"
"strconv"
)
//使用示例: gosupport.StrTo("123456789").MustUint64()
type StrTo string
func (f StrTo) String() string {
return string(f)
}
func (f StrTo) Uint8() (uint8, error) {
v, err := strconv.ParseUint(f.String(), 10, 8)
return uint8(v), err
}
func (f StrTo) MustUint8() uint8 {
v, _ := f.Uint8()
return v
}
func (f StrTo) Uint64() (uint64, error) {
v, err := strconv.ParseUint(f.String(), 10, 64)
return v, err
}
func (f StrTo) MustUint64() uint64 {
v, _ := f.Uint64()
return v
}
func (f StrTo) Int() (int, error) {
if i, err := strconv.Atoi(f.String()); err != nil {
return 0,err
} else {
return i,nil
}
}
func (f StrTo) IntV0() (int, error) {
v, err := strconv.ParseInt(f.String(), 10, 0)
return int(v), err
}
func (f StrTo) MustInt() int {
v, _ := f.Int()
return v
}
func (f StrTo) Int64() (int64, error) {
v, err := strconv.ParseInt(f.String(), 10, 64)
return int64(v), err
}
func (f StrTo) MustInt64() int64 {
v, _ := f.Int64()
return v
}
func (f StrTo) Float32() (float32, error) {
v, err := strconv.ParseFloat(f.String(), 32)
return float32(v), err
}
func (f StrTo) MustFloat32() float32 {
v, _ := f.Float32()
return v
}
func (f StrTo) Float64() (float64, error) {
v, err := strconv.ParseFloat(f.String(), 64)
return v, err
}
func (f StrTo) MustFloat64() float64 {
v, _ := f.Float64()
return v
}
//任意值转字符串
func ToStr(value interface{}, args ...int) (s string) {
switch v := value.(type) {
case bool:
s = strconv.FormatBool(v)
case float32:
s = strconv.FormatFloat(float64(v), 'f', ArgInt(args).Get(0, -1), ArgInt(args).Get(1, 32))
case float64:
s = strconv.FormatFloat(v, 'f', ArgInt(args).Get(0, -1), ArgInt(args).Get(1, 64))
case int:
s = strconv.FormatInt(int64(v), ArgInt(args).Get(0, 10))
case int8:
s = strconv.FormatInt(int64(v), ArgInt(args).Get(0, 10))
case int16:
s = strconv.FormatInt(int64(v), ArgInt(args).Get(0, 10))
case int32:
s = strconv.FormatInt(int64(v), ArgInt(args).Get(0, 10))
case int64:
s = strconv.FormatInt(v, ArgInt(args).Get(0, 10))
case uint:
s = strconv.FormatUint(uint64(v), ArgInt(args).Get(0, 10))
case uint8:
s = strconv.FormatUint(uint64(v), ArgInt(args).Get(0, 10))
case uint16:
s = strconv.FormatUint(uint64(v), ArgInt(args).Get(0, 10))
case uint32:
s = strconv.FormatUint(uint64(v), ArgInt(args).Get(0, 10))
case uint64:
s = strconv.FormatUint(v, ArgInt(args).Get(0, 10))
case string:
s = v
case []byte:
s = string(v)
default:
s = fmt.Sprintf("%v", v)
}
return s
}
type ArgInt []int
//示例:var abc gosupport.ArgInt = []int{101, 11,12,33}
// fmt.Println(abc.Get(1, 10)) //11
//i表取切片第i个值,小于0则取args的第1个值
func (a ArgInt) Get(i int, args ...int) (r int) {
if i >= 0 && i < len(a) {
r = a[i]
} else if len(args) > 0 {
r = args[0]
}
return
}