python字符串转数字
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
import binasciis = 'test123456test'str_16 = binascii.b2a_hex(s.encode('utf-8')) # 字符串转16进制print(str_16)def basen(num, b): return ((num == 0) and "0") or \ (basen(num // b, b).lstrip("0") + "0123456789abcdefghijklmnopqrstuvwxyz"[num % b])num_10 = int(str_16, 16) # 16进制转10进制print(num_10)str_32 = basen(num_10, 32) # 10进制转32进制print(str_32)num_10_2 = int(str_32, 32) # 32进制转10进制print(num_10_2)num_16 = hex(num_10) # 10进制转16进制数print(num_16)ss = str_16.decode('hex') # 16进制串转字符串print(ss) |
执行结果
|
1
2
3
4
5
6
|
746573743132333435367465737423607972896813809817515175175422601q6asrk64p36d1l6pq6asrk23607972896813809817515175175422600x7465737431323334353674657374ltest123456test |
10进制转n进制
|
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
|
def base10ton(num,n): """change a to a base-n number. up to base-36 is supported without special notation.""" num_rep={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'} new_num_string='' current=num while current!=0: remainder=current%n if 36>remainder>9: remainder_string=num_rep[remainder] elif remainder>=36: remainder_string='('+str(remainder)+')' else: remainder_string=str(remainder) new_num_string=remainder_string+new_num_string current=current/n return new_num_string |
进阶版
|
1
2
3
|
def basen(num, b): return ((num == 0) and "0") or \ (basen(num // b, b).lstrip("0") + "0123456789abcdefghijklmnopqrstuvwxyz"[num % b]) |
64进制
|
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
|
def encode_b64(n): table = '0123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz-_' result = [] temp = n if 0 == temp: result.append('0') else: while 0 < temp: result.append(table[temp % 64]) temp /= 64 return ''.join([x for x in reversed(result)])def decode_b64(str): table = {"0": 0, "1": 1, "2": 2, "3": 3, "4": 4, "5": 5, "6": 6, "7": 7, "8": 8, "9": 9, "a": 10, "b": 11, "c": 12, "d": 13, "e": 14, "f": 15, "g": 16, "h": 17, "i": 18, "j": 19, "k": 20, "l": 21, "m": 22, "n": 23, "o": 24, "p": 25, "q": 26, "r": 27, "s": 28, "t": 29, "u": 30, "v": 31, "w": 32, "x": 33, "y": 34, "z": 35, "a": 36, "b": 37, "c": 38, "d": 39, "e": 40, "f": 41, "g": 42, "h": 43, "i": 44, "j": 45, "k": 46, "l": 47, "m": 48, "n": 49, "o": 50, "p": 51, "q": 52, "r": 53, "s": 54, "t": 55, "u": 56, "v": 57, "w": 58, "x": 59, "y": 60, "z": 61, "-": 62, "_": 63} result = 0 for i in xrange(len(str)): result *= 64 result += table[str[i]] return result |
java字符串转数字
|
1
2
|
biginteger integer = new biginteger(hexstring.tostring(), 16);integer.tostring(32); |
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
import java.math.biginteger;public class main { public static void main(string[] argv) throws exception { biginteger bi = new biginteger("1023"); bi = new biginteger("1111111111", 2); string s = bi.tostring(2); system.out.println(s); bi = new biginteger("1000", 8); system.out.println(s = bi.tostring(8)); bi = new biginteger("1023"); s = bi.tostring(); system.out.println(s); bi = new biginteger("3ff", 16); s = bi.tostring(16); system.out.println(s); }} |
以上这篇python任意字符串转16, 32, 64进制的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/dutsoft/article/details/79076327
