提取子串(双while替代flag) | HJ96 表示数字

while True:
    try:
        s = input()
        i = 0
        res = ''
        while i < len(s):
            if s[i].isdigit():
                res += '*'
                while i<len(s) and s[i].isdigit():
                    res += s[i]
                    i += 1
                res += '*'
            else:
                res += s[i]
                i += 1
        print(res)
    except:
        break

用时：10min