forked from lanvige/goutils
-
Notifications
You must be signed in to change notification settings - Fork 1
/
string_util.go
124 lines (93 loc) · 2.53 KB
/
string_util.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
package utils
import (
"encoding/binary"
"fmt"
"log"
"math/rand"
"time"
)
// func genSymbol(length int) []string {
// charStr := "+=-@#~,.[]()!%^*$"
// var genstr := []string
// //遍历,生成一个随机index索引,
// for i := 0; i < length; i++ {
// index := rand.Intn(len(charStr))
// genstr[i] = charStr[index]
// }
// return string(genstr)
// }
// func genDigit(length int) string {
// charStr := "0123456789"
// var genstr []byte = make([]byte, length, length)
// //遍历,生成一个随机index索引,
// for i := 0; i < length; i++ {
// index := rand.Intn(len(charStr))
// genstr[i] = charStr[index]
// }
// return string(genstr)
// }
// func genChar(length int) string {
// charStr := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
// var passwd []byte = make([]byte, length, length)
// //遍历,生成一个随机index索引,
// for i := 0; i < length; i++ {
// index := rand.Intn(len(charStr))
// passwd[i] = charStr[index]
// }
// return string(passwd)
// }
// // GenPassword GenPassword
// func GenPassword(length, digitLength, symbolLength uint32) string {
// digitStr = "0123456789"
// charStr := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
// symbolStr := "+=-@#~,.[]()!%^*$"
// bytes := []byte(str)
// result := []byte{}
// r := rand.New(rand.NewSource(time.Now().UnixNano()))
// for i := 0; i < l; i++ {
// result = append(result, bytes[r.Intn(len(bytes))])
// }
// return string(result)
// }
// GenRandomString GenRandomString
func GenRandomString(l int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
bytes := []byte(str)
result := []byte{}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < l; i++ {
result = append(result, bytes[r.Intn(len(bytes))])
}
return string(result)
}
// GenRandomNumString GenRandomNumString
func GenRandomNumString(l int) string {
str := "0123456789"
bytes := []byte(str)
result := []byte{}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < l; i++ {
result = append(result, bytes[r.Intn(len(bytes))])
}
return string(result)
}
// GenRandomSixDigital GenRandomSixDigital
func GenRandomSixDigital() string {
var b [8]byte
_, err := rand.Read(b[:])
if err != nil {
log.Panicln(err)
}
c := binary.LittleEndian.Uint64(b[:]) % 1000000
if c < 100000 {
c = 100000 + c
}
return fmt.Sprintf("%d", c)
}
// DefaultString DefaultString
func DefaultString(value, defaultValue string) string {
if "" == value {
return defaultValue
}
return value
}