Python Learning notes (i)

Print ('thequick brown fox'jumpsover'thelazy dog  'Thequick brown fox jumps over the The lazy dog

print()Each string will be printed sequentially, and a comma "," will output a space, so the output string is spelled like this:

Name = input (")print('Hello,', name)

Sequence one runs, will first print out please enter your name: , so that the user can follow the prompts, enter the name, the resulting hello, xxx output:

Finally, it is important to note that the Python program is case-sensitive, and if the case is written incorrectly, the program will give an error.

If there is a lot of line wrapping inside the string, it is not good to read in a single line, and in \n order to simplify, Python allows ‘‘‘...‘‘‘ the format to represent multiple lines of content

Print ("'line1 ... line2 ... line3") Line1line2line3

Null value

A null value is a special value in Python, None denoted by. Nonecannot be understood as 0 , because 0 it is meaningful, and None is a special null value.

# -*-coding:utf-8-*-

' Hi,%s, you have $%d. ' % ('Michael', 1000000)

If you're not sure what to use, %sAlways works, it converts any data type to a string:

Python Learning notes (i)