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func Digits ¶

func Digits(n int) string

Digits returns a random string which contains only digits, and its length is <n>.

func Intn ¶

func Intn(max int) int

Intn returns a int number which is between 0 and max - [0, max).

Note: 1. The result is greater than or equal to 0, but less than <max>; 2. The result number is 32bit and less than math.MaxUint32.

func Letters ¶

func Letters(n int) string

Letters returns a random string which contains only letters, and its length is <n>.

func Meet ¶

func Meet(num, total int) bool

Meet randomly calculate whether the given probability <num>/<total> is met.

func MeetProb ¶

func MeetProb(prob float32) bool

MeetProb randomly calculate whether the given probability is met.

func N ¶

func N(min, max int) int

N returns a random int between min and max - [min, max].

func Perm ¶

func Perm(n int) []int

Perm returns, as a slice of n ints, a pseudo-random permutation of the integers [0,n).

func Rand ¶

func Rand(min, max int) int

Deprecated. Alias of N.

func RandDigits ¶

func RandDigits(n int) string

Deprecated. Alias of Digits.

func RandLetters ¶

func RandLetters(n int) string

Deprecated. Alias of Letters.

func RandStr ¶

func RandStr(n int) string

Deprecated. Alias of Str.

func Str ¶

func Str(n int) string

Str returns a random string which contains digits and letters, and its length is <n>.