假设变量 a=10 和 变量b=20，然后：
| 操作符 | 描述 | 示例 |
|---|---|---|
| + |
将操作符的两侧数值增加(加法运算)
|
a + b = 30 |
| - |
左操作数减去右操作数
|
a – b = -10 |
| * |
操作符两侧数据相乘(乘法运算)
|
a * b = 200 |
| / |
操作符左侧操作数除以右操作数
|
b / a = 2 |
| % |
左操作数除以右侧操作数的余数
|
b % a = 0 |
| ** |
执行指数(幂)计算
|
a**b 就是10 的20 次幂 |
| // | 地板除 - 除法不管操作数为何种数值类型，总是会舍去小数部分，返回数字序列中比真正的商小的最接近的数字 | 9//2 = 4 以及 9.0//2.0 = 4.0 |
示例
假设变量 a = 10和变量 b = 20，那么 -
#!/usr/bin/python3
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 ", c )
c = a % b
print ("Line 5 - Value of c is ", c)
a = 2
b = 3
c = a**b
print ("Line 6 - Value of c is ", c)
a = 10
b = 5
c = a//b
print ("Line 7 - Value of c is ", c)
当你执行上面的程序，它会产生以下结果 -
Line 1 - Value of c is 31 Line 2 - Value of c is 11 Line 3 - Value of c is 210 Line 4 - Value of c is 2.1 Line 5 - Value of c is 1 Line 6 - Value of c is 8 Line 7 - Value of c is 2
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Python3变量类型
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