作者：羽林尉链接：https://www.nowcoder.com/discuss/69725?type=1&order=0&pos=30&page=1来源：牛客网 M = [i for i in range(1,10)] ''' 方法一：字符串拼接 '''f = '' f = f.join(str(x) x for x in M)print('f = ',f, type(f)) ''' 方法二：循环 '''for index, m in enumerate(M): if index == 0 : s = m else: s = s * 10 + mprint('s = ', s, type(s)) ''' 方法三：Python内建的高阶函数 '''t = reduce(lambda x, y: x * 10 + y, M)print('t = ', t, type(t))