| 列表元组倒序 | | | --- | --- | ``` list = ['one', 'two', 'three'] tupl = ('one', 'two', 'three') print list[::-1] print tupl[::-1] 输出：['three', 'two', 'one'] 输出：('three', 'two', 'one') #该方法也是一种 a = [9,6,5,4,1] N = len(a) print a for i in range(len(a) / 2): a[i],a[N - i - 1] = a[N - i - 1],a[i] print a ``` | 列表元组转字符串 | | | --- | --- | ``` list = (1,2,3,4,5) string = ','.join(str(n) for n in list) print string 输出：1,2,3,4,5 ```