x

func CryptoRandom ¶

func CryptoRandom(min, max int64) (int64, error)

func Decimal2IP ¶

func Decimal2IP(n int64) string

Decimal2IP transform a decimal IP to x.x.x.x format.

func Decimal2IP0 ¶

func Decimal2IP0(n int64) (ip string, err error)

Decimal2IP0 transform a decimal IP to x.x.x.x format. ref: https://zh.wikipedia.org/wiki/IPv4

func Decimal2IP1 ¶

func Decimal2IP1(n int64) string

Decimal2IP1 transform a decimal IP to x.x.x.x format.

func Distance ¶

func Distance(lng1, lat1, lng2, lat2 float64) float64

return m

func IP2Decimal ¶

func IP2Decimal(ipstr string) (int64, error)

IP2Decimal transform ip format like x.x.x.x to decimal.

func IP2Decimal0 ¶

func IP2Decimal0(ip string) (n int64, err error)

IP2Decimal0 transform ip format like x.x.x.x to decimal. ref: https://zh.wikipedia.org/wiki/IPv4

func IP2Decimal1 ¶

func IP2Decimal1(ipstr string) (int64, error)

IP2Decimal1 transform ip format like x.x.x.x to decimal.

func IsBankCard ¶

func IsBankCard(n int64) (ok bool, err error)

IsBankCard determine whether it is bankcard number

func IsChineseID ¶

func IsChineseID(s string) (ok bool, err error)

IsChineseID determine whether it is Chinese ID Card Number

func IsChineseWords ¶

func IsChineseWords(words string) (ok bool, err error)

IsChineseWords determine whether it is Chinese words Notice: NOT ALL

func IsEmail ¶

func IsEmail(email string) (ok bool, err error)

IsEmail determine whether it is email address

func JSON ¶

func JSON(w http.ResponseWriter, v interface{})

func NewBytesPool ¶

func NewBytesPool(n int) sync.Pool

func Random ¶

func Random(min, max int64) int64

Random used to get a random number between [min, max)

func RandomNumber ¶

func RandomNumber() (i int64)

RandomNumber used to get a random number

func ReadJSON ¶

func ReadJSON(r *http.Request, o interface{}) error