forked from golang/hotime
43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
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package util
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import (
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"math/rand"
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"time"
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)
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//随机生成字符串
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func RandomString(l int) string {
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str := "0123456789AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz"
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bytes := []byte(str)
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var result []byte = make([]byte, 0, l)
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for i := 0; i < l; i++ {
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result = append(result, bytes[r.Intn(len(bytes))])
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}
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return BytesToString(result)
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}
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//随机生成纯字符串
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func RandomPureString(l int) string {
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str := "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz"
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bytes := []byte(str)
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var result []byte = make([]byte, 0, l)
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for i := 0; i < l; i++ {
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result = append(result, bytes[r.Intn(len(bytes))])
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}
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return BytesToString(result)
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}
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//随机生成数字字符串
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func RandomNumber(l int) string {
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str := "0123456789"
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bytes := []byte(str)
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var result []byte
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for i := 0; i < l; i++ {
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result = append(result, bytes[r.Intn(len(bytes))])
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}
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return BytesToString(result)
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}
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