谁能告诉我哪里出现问题？

Question

# coding:utf8

for x in ['9', '8', '7', '6', '5', '4', '3', '2', '1']:

    for y in['9', '8', '7', '6', '5', '4', '3', '2', '1', '0']:

        if x < y:

            print x + 有问题吗？

Answer 1

1、python中，＋是二元运算符，不支持x＋
2、列表内元素是字符型。

Answer 2

不理解你这个print x+是想做什么，这样写肯定有问题的。

Answer 3

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https://www.apple.com/search/%E6%AD%A6%E9%98%B3%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%AD%A6%E9%98%B3%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fm

https://www.apple.com/search/%E5%94%90%E6%B1%9F%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E5%94%90%E6%B1%9F%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fv

https://www.apple.com/search/%E5%87%A4%E5%B2%97%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775X%29%E5%87%A4%E5%B2%97%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fe

https://www.apple.com/search/%E6%BD%AD%E5%8F%A3%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%BD%AD%E5%8F%A3%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fn

https://www.apple.com/search/%E9%BE%99%E5%B2%AD%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E9%BE%99%E5%B2%AD%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fo

https://www.apple.com/search/%E9%BE%99%E5%9B%9E%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E9%BE%99%E5%9B%9E%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fz

https://www.apple.com/search/%E9%95%9C%E5%9D%9D%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E9%95%9C%E5%9D%9D%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fg

https://www.apple.com/search/%E6%A8%AA%E5%B8%82%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%A8%AA%E5%B8%82%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fu

https://www.apple.com/search/%E6%BD%AD%E4%B8%9C%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%BD%AD%E4%B8%9C%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fc

https://www.apple.com/search/%E7%AB%9F%E6%88%90%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E7%AB%9F%E6%88%90%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fe

https://www.apple.com/search/%E9%B2%87%E9%B1%BC%E5%B1%B1%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775V%29%E9%B2%87%E9%B1%BC%E5%B1%B1%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fv

https://www.apple.com/search/%E6%B5%AE%E6%A2%81%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%B5%AE%E6%A2%81%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fc

https://www.apple.com/search/%E9%B9%85%E6%B9%96%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E9%B9%85%E6%B9%96%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fi

https://www.apple.com/search/%E7%BB%8F%E5%85%AC%E6%A1%A5%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E7%BB%8F%E5%85%AC%E6%A1%A5%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fo

https://www.apple.com/search/%E8%9B%9F%E6%BD%AD%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E8%9B%9F%E6%BD%AD%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fy

https://www.apple.com/search/%E6%B9%98%E6%B9%96%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%B9%98%E6%B9%96%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Ft

https://www.apple.com/search/%E7%91%B6%E9%87%8C%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E7%91%B6%E9%87%8C%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fq

https://www.apple.com/search/%E6%B4%AA%E6%BA%90%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%B4%AA%E6%BA%90%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fy

https://www.apple.com/search/%E5%AF%BF%E5%AE%89%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E5%AF%BF%E5%AE%89%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fv

https://www.apple.com/search/%E4%B8%89%E9%BE%99%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E4%B8%89%E9%BE%99%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fy

https://www.apple.com/search/%E9%95%87%E6%A1%A5%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E9%95%87%E6%A1%A5%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fe

https://www.apple.com/search/%E4%B9%90%E6%B8%AF%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E4%B9%90%E6%B8%AF%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fd

https://www.apple.com/search/%E6%B6%8C%E5%B1%B1%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%B6%8C%E5%B1%B1%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fc

https://www.apple.com/search/%E4%BC%97%E5%9F%A0%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E4%BC%97%E5%9F%A0%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fd

https://www.apple.com/search/%E6%8E%A5%E6%B8%A1%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775X%29%E6%8E%A5%E6%B8%A1%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fn

https://www.apple.com/search/%E6%B4%AA%E5%B2%A9%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E6%B4%AA%E5%B2%A9%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Ff

https://www.apple.com/search/%E7%A4%BC%E6%9E%97%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E7%A4%BC%E6%9E%97%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Ft

https://www.apple.com/search/%E5%90%8E%E6%B8%AF%E9%95%87%E5%93%AA%E9%87%8C%E6%9C%89%E6%A1%91%E6%8B%BF%E6%8C%89%E6%91%A9%E6%9C%8D%E5%8A%A1%28993.58775VX%29%E5%90%8E%E6%B8%AF%E9%95%87%E5%B0%8F%E5%A6%B9%E6%8F%B4%E4%BA%A4%E6%80%8E%E4%B9%88%E6%89%BE%5Fc

Answer 4

你的语法就是错的， x+  是啥意思？你先解释解释

Answer 5

print x +什么鬼？如果x++还能理解

Answer 6

你第二个for的缩进是不是有问题

Answer 7

我这没什么问题(python3.5)

------分割线

print x 后面的 + 什么东西