要写个短链服务，用到了10->62进制，网上找了一个，可以转换最多76位进制的博客，但用不了那么多，就整理了一份62进制的
package main
import (
"strings"
"math"
"strconv"
"fmt"
)
var tenToAny map[int]string = map[int]string{
0: "0",
1: "1",
2: "2",
3: "3",
4: "4",
5: "5",
6: "6",
7: "7",
8: "8",
9: "9",
10: "a",
11: "b",
12: "c",
13: "d",
14: "e",
15: "f",
16: "g",
17: "h",
18: "i",
19: "j",
20: "k",
21: "l",
22: "m",
23: "n",
24: "o",
25: "p",
26: "q",
27: "r",
28: "s",
29: "t",
30: "u",
31: "v",
32: "w",
33: "x",
34: "y",
35: "z",
36: "A",
37: "B",
38: "C",
39: "D",
40: "E",
41: "F",
42: "G",
43: "H",
44: "I",
45: "J",
46: "K",
47: "L",
48: "M",
49: "N",
50: "O",
51: "P",
52: "Q",
53: "R",
54: "S",
55: "T",
56: "U",
57: "V",
58: "W",
59: "X",
60: "Y",
61: "Z"}
func main() {
fmt.Println(decimalToAny(1, 62))
fmt.Println(anyToDecimal("1", 62))
}
// 10进制转任意进制
func decimalToAny(num, n int) string {
new_num_str := ""
var remainder int
var remainder_string string
for num != 0 {
remainder = num % n
if 76 > remainder && remainder > 9 {
remainder_string = tenToAny[remainder]
} else {
remainder_string = strconv.Itoa(remainder)
}
new_num_str = remainder_string + new_num_str
num = num / n
}
return new_num_str
}
// map根据value找key
func findKey(in string) int {
result := -1
for k, v := range tenToAny {
if in == v {
result = k
}
}
return result
}
// 任意进制转10进制
func anyToDecimal(num string, n int) int {
var new_num float64
new_num = 0.0
nNum := len(strings.Split(num, "")) - 1
for _, value := range strings.Split(num, "") {
tmp := float64(findKey(value))
if tmp != -1 {
new_num = new_num + tmp * math.Pow(float64(n), float64(nNum))
nNum = nNum - 1
} else {
break
}
}
return int(new_num)
}
原文链接：Golang实现任意进制转换
原文链接: https://chenyongze.github.io/2017/04/07/golang-hex-conversion/