64进制互转

64进制互转

#coding=gbk
digit64 = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/'
def int_to_str64( x ):
    try:
        x=int(x)
    except:
        x=0
    if x<0:
        x=-x
    if x==0:
        return "0"
    s=""
    while x>64:
        x1= x % 64
        s = digit64[x1]+s
        x = x // 64
    if x>0:
       s = digit64[x]+s 
    return s
def str64_to_int( s ):
    x = 0
    s = str(s).strip()
    if s=="":
        return x
    for y in s:
        k = digit64.find(y)
        if k>=0:
           x=x*64+k
    return x
x = 58
s = int_to_str64(x)
y = str64_to_int( s)
print( x , s , y)