获取定长随机字符串；可自定义分割方式

get_random_str.py

SEEDS = (
    (0, '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'),
    (1, '1234567890'),
    (2, '1234567890abcdefghijklmnopqrstuvwxyz'),
    (3, '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
    (4, 'abcdefghijklmnopqrstuvwxyz'),
    (5, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
    (6, '!@\\#$%^&*()/_+=-\'\"'), # 特殊符号：!@\#$%^&*()/_+=-'"
    (7, ''),
    (8, ''),
)

def get_random_str(length=8, seed=None, sep=None):
    import random
    if seed is None:
        seed = '1234567890abcdefghijklmnopqrstuvwxyz' # 默认：数字+小写字母
    sa = []
    for i in range(length):
        sa.append(random.choice(seed))
    
    result = ''.join([random.choice(seed) for _ in range(length)])
    
    print(result)
    
    # sep格式：((nA, sA), (nB, sB), (nC, sC))
    if sep is not None:
        r = result
        result = ''
        l = 0
        for ss in sep:
            if type(ss) is tuple and len(ss) > 1:
                n, s = ss
            else:
                n = int(ss)
                s = ''
            result += r[l:l + n] + s
            l += n
    
    return result