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This practice crawls the portal this bar in the food picture.If the IMG tag and the class attribute are used, the beautifulsoup can be easily solved, but this time use regular expression, I also refer to the blogger's blog: PortalThe SRC address of all pictures is the same, so we can filter out the images we want. That is, instead of the value of the class attribute in the match, the regular expression is used to match the SRC value.1 fromUrllibImportRequest2 fromBs4ImportBeautifulSoup3 Import

or girl?")3age = Int (input ("How is old is you ?"))4 5 ifSex = ='Girl':6 ifAge :7 Print("I like girl")8 Else:9 Print("brother and sister Love is also very good oh")Ten Else: One Print("Togerther come on")View Code8 Statement Loop whileTimes =0 whileTimes : Guess_number= Int (Input ("Please enter a score:")) ifguess_number>100: Print("input error, out of") elifGuess_number >= 90: Print("level: A") elifGuess_number >= 80: Print("level: B"

equivalent to expand in accordance with the location of the way to write;2, **kwargs equivalent to the Kwargs in accordance with the key word to write;Functions can be passed as datadef func ()Print (' In the fun ')FL = FunFL ()Functions can be used as parameters: higher-order functions:def foo (x):X ()Foo (func)The return value can be a function:##########################################Can be an element of a container type:func_dic={' Func ': func}Func_dic[' func '] ()Can be used as the retur

++"17. Write Shell program, realize the function of automatically delete 30 accounts. The account name is STD01 to Std30. 1 #!/bin/bash 2 i=1 3 while [$i-le] 4 does 5 if [$i-lt] 6 then 7 Userdel std 0$i 8 Else 9 userdel std$i fi one Let "i++"18. User cleanup, clear all users except the current login userKill $ (Who-u | grep-v ' WhoAmI ' | awk ' {print $6} ' |sort-u)19. Script implementation, you can use Shell, Perl and so on