How to define a variable in python

How to define a variable in Python?

In python, each variable must be assigned a value before use. The variable will not be created until the variable is assigned a value

The equal sign (=) is used to assign a value to the variable

=The left side is a variable name

=The right side is the value stored in the variable

Variable name = value

After the variable is defined, it can be used directly later

Example:

#!/usr/bin/python
# -*- coding: UTF-8 -*-

counter = 100 # 赋值整型变量
miles = 1000.0 # 浮点型
name = "John" # 字符串

print counter
print miles
print name

Output:

100
1000.0
John

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