哪里有问题？

for x in [ '1','2','3','4','5','6','7','8','9' ]:
    for y in [ '2','3','4','5','6','7','8','9']
        if x > y:
            break
        else:
            continue
        print x + y

weixin_慕码人7102757

2019-08-23

源自：初识Python 5-8

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qq_慕后端2505779
2019-09-08

for x in [ '1','2','3','4','5','6','7','8','9' ]:
    for y in ['0', '1','2','3','4','5','6','7','8','9' ]:
        if x < y:
          print x + y        
      else:            
          continue

0 回复有任何疑惑可以回复我~

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Anastasia2019
2019-08-30

第二种改法

for x in [ '1','2','3','4','5','6','7','8','9' ]:
    for y in [ '2','3','4','5','6','7','8','9']:
        if int(x) >= int(y) :
            continue
        else:
            print x + y

1 回复有任何疑惑可以回复我~

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Anastasia2019
2019-08-30

‘’表示字符串，字符串不能比较大小；
for……in 后面要加：
修改如下，已测试可正常运行
for x in [1,2,3,4,5,6,7,8,9]:
    for y in [2,3,4,5,6,7,8,9]:
        if x < y:
            print x * 10 + y
        else:
            continue

2 回复有任何疑惑可以回复我~

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qq_慕后端2505779

for x in [ '1','2','3','4','5','6','7','8','9' ]: for y in ['0', '1','2','3','4','5','6','7','8','9' ]: if x < y: print x + y else: continue 可是我的程序可以正常运行啊，是不是内容是数字的字符串可以比大小

2019-09-08 回复有任何疑惑可以回复我~

Anastasia2019 回复 qq_慕后端2505779

我这里显示不能运行哎 "index.py", line 41 for y in ['0', '1','2','3','4','5','6','7','8','9' ]: ^ IndentationError: expected an indented block

2019-09-09 回复有任何疑惑可以回复我~

Anastasia2019 回复 qq_慕后端2505779

查了一下python里字符串的大小比较，应该是按照ASCII码的顺序比较的 import math a=("Apollo","Hermes","Hermesa","Athena","Aphrodite","Dionysus") print(min(a)) print(max(a)) 结果是： Aphrodite Hermesa

2019-09-09 回复有任何疑惑可以回复我~