最简单的写法

Discuss / Python / 最简单的写法

Back

Topic source

#1 Created at ... [Delete] [Delete and Lock User]

def trim(s): while s[:1]==' ': s=s[1:] while s[-1:]==' ': s=s[:-1] return s

#2 Created at ... [Delete] [Delete and Lock User]

咱们写的一样哈哈

#3 Created at ... [Delete] [Delete and Lock User]

我试了下这个函数测试失败了，是怎么回事? def trim(s): while s[:1] == '': s = s[1:] while s[-1:] == '': s = s[:-1] return s

#4 Created at ... [Delete] [Delete and Lock User]

''要改为' ’,留出空格的位置。