Python算术运算符
假设变量a持有10，变量b持有20，则-
| 序号 | 运算符和说明 | 例 |
|---|---|---|
| 1 | +加法 在运算符的任一侧添加值。 | a + b = 30 |
| 2 | -减法 从左手操作数中减去右手操作数。 | a – b = -10 |
| 3 | *乘法 将运算符两侧的值相乘 | a * b = 200 |
| 4 | /除法 将左操作数除以右操作数 | b / a = 2 |
| 5 | ％模量 ％模量 | b％a = 0 |
| 6 | **指数 对运算符执行指数（幂）计算 | a ** b =幂20 |
| 7 | // 底数除法-操作数的除法，其结果是除去小数点后的数字的商。但是，如果其中一个操作数是负数，则结果是下限的，即从零舍入（朝负无穷大）- | 9 // 2 = 4和9.0 // 2.0 = 4.0，-11 // 3 = -4，-11.0 // 3 = -4.0 |
示例
假设变量a持有21，变量b持有10，则-
#!/usr/bin/pythona = 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
当您执行上述程序时，它将产生以下结果-
Line 1 - Value of c is 31Line 2 - Value of c is 11
Line 3 - Value of c is 210
Line 4 - Value of c is 2
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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