有会用PYTHON 语言的朋友，请帮个忙

[今天]

孩子在学PYTHON 卡在这道题上了，请指点一下

Instructions
Write a function upper_lower that consumes a string plainand produces a string with the same characters as in plainexcept that all letters in the first half of the string are in upper case and all the rest of the letters are in lower case. Non-letters should be the same.

If the length of the string is odd, the "first half" should contain the middle character.

Warning: Make sure to use the name of the function given in the instructions.

 

[uglyducking]

first split string in two halves, then
first half
$ tr a-z A-Z
2nd half
$ tr A-Z a-z

 

[月下独酌]

def upper_lower(string):
=

孩子在学PYTHON 卡在这道题上了，请指点一下

Instructions
Write a function upper_lower that consumes a string plainand produces a string with the same characters as in plainexcept that all letters in the first half of the string are in upper case and all the rest of the letters are in lower case. Non-letters should be the same.

If the length of the string is odd, the "first half" should contain the middle character.

Warning: Make sure to use the name of the function given in the instructions.

def upper_lower(string):
    length = len(string)

    middle = length//2

    if length % 2:
        middle += 1

    return string[:middle].upper() + string[middle:].lower()

 

[uglyducking]

50 分

all the rest of the letters are in lower case

def upper_lower(string):
=

def upper_lower(string):
    length = len(string)

    middle = length//2

    if length % 2:
        middle += 1

    return string[:middle].upper() + string[middle:]

 

[今天]

first split string in two halves, then
first half
$ tr a-z A-Z
2nd half
$ tr A-Z a-z

def upper_lower(string):
=

def upper_lower(string):
    length = len(string)

    middle = length//2

    if length % 2:
        middle += 1

    return string[:middle].upper() + string[middle:]

谢谢，我让他试试

 

[uglyducking]

谢谢，我让他试试

我的那个就算了。

 

[月下独酌]

我的那个就算了。

人家要python你给个shell你这不是逗么

 

[uglyducking]

人家要python你给个shell你这不是逗么

shell是所有script语言之爹。

 

[月下独酌]

shell是所有script语言之爹。

您老这个胡搅蛮缠的本事也是炉火纯青

 

[uglyducking]

您老这个胡搅蛮缠的本事也是炉火纯青

赶紧地，把你的bug修了，别害了孩子。

 

[月下独酌]

赶紧地，把你的bug修了，别害了孩子。

什么bug，求高见

 

[uglyducking]

all the rest of the letters are in lower case

什么bug，求高见

高什么见啊？

 

[月下独酌]

高什么见啊？

哦，少了个.lower()在后面

一般早上不写code。

 

[uglyducking]

哦，少了个.lower()在后面

一般早上不写code。

早晨是喝咖啡的时间。

 

[月下独酌]

早晨是喝咖啡的时间。

正解

早上到了办公室
1. 吃早饭
2. 喝咖啡
3. 上网灌水看新闻

中午吃过午饭再考虑今天是否要工作。。。