下表列出了所有Python语言支持的算术运算符。假设变量a持有10和变量b持有20，则：
例子:
试试下面的例子就明白了所有的Python编程语言提供了算术运算符：
#!/usr/bin/python
a = 21
b = 10
c = 0
c = a + b
print “Line 1 – Value of c is “, c
c = a – b
print “Line 2 – Value of c is “, c
c = a * b
print “Line 3 – Value of c is “, c
c = a / b
print “Line 4 – Value of c is “
