Python daily delicious (2)-the art of character Traversal

Source: Internet
Author: User
Generally, to traverse each character in a string, we must first obtain the length of the string, and then use a for loop to retrieve and process each character. However, it is also our python, which provides us with many convenient ways to traverse characters in a string. For example, convert a string into a character array:
TheList = List (thestring)

At the same time, we can easily traverse through the for statement:

For C in thestring:
Do_something_with (c)


Even more, use the following statement:

Result = [ Do_something_with (c) for C in thestring if C = 'X']

At the same time, you can also use the map statement. Next, let's start serving! Legend has it that there is a magic string, infected with viruses, and many X characters are attached to the virus. You will design an engine, Get out of Virus X, and output our magic string.ProgramAs follows:

Thestring =   ' IX lixkxex xpxytxhxonx! '
Def Printengine (c ):
If C ! =   ' X ' :
Print C,
Map (printengine, thestring)


Output result:

I like python!

Python daily delicious series (total)

Python daily delicious (1)-variable exchange

Python daily delicious (2)-the art of character Traversal

Python daily delicious (3)-character conversion

Python daily delicious (4)-isinstance determines the object type

Python daily delicious (5)-ljust just Center

...

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