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Today Xiaobian to share with you the basic input and output methods of python what related knowledge points, detailed content, clear logic, I believe that most people still know too much about this knowledge, so share this article for everyone to refer to, I hope you have some gains after reading this article, let's learn about it together.

Python basic input and output 1.input input function

input function: takes user input and stores it as a string.

>>> name = input("Please enter your name: ") Please enter your name: >? onceday>>>name'onceday'

Note that even the numbers you enter are saved as strings!

The input function returns the user input intact and wraps it into a string.

The input function can sometimes be cleverly used to block or pause programs

2. print output function

Used to format content for display on standard output, primarily referring to on-screen displays.

Print can accept multiple strings, variables of string type, or printable objects. Each string is separated by commas "," and connected into a string output. print prints each string in turn, and prints a space for each comma "," encountered.

print('aaa','bbb','ccc')aaa bbb ccc

For statements like print(a+"a"+b), you compute the value of a+"a"+b first, and then print it. print() automatically executes the internal statement and outputs the desired result.

print function prototype: print(self, *args, sep ='', end ='\n', file=None)

sep parameter: Separated symbol, default is a space;

end parameter: End method after printing, default is newline\n. If you set end ='', you can print continuously on one line without line breaks. Flexible print control can be achieved by using print parameters.

2.1 print output color control (terminal valid)

Sometimes we need to set different colors for useful information to achieve emphasis, highlight, and aesthetic effects. In the command line or linux terminal, colors are controlled by escape sequences that begin with ESC and are represented by\033 in code (ESC ASCII code is 27 in decimal, equal to 33 in octal,\0 in octal). Note: color control is only available in linux terminal interfaces.

Display mode: \033[display mode; foreground color; background color m text\033, such as\033[0m].

foreground background color 3040 black 3141 red 3242 green 3343 yellow 3444 blue 3545 magenta 3646 cyan 3747 white display mode meaning 0 terminal defaults 1 highlight 4 underline 5 flash 7 highlight 8 invisible print ('\033 [1;31m*' * 50, '\033[0 m')#highlight red, then restore terminal defaults

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