Python 算术运算符
pythonserver side programmingprogramming
假设变量 a 为 10，变量 b 为 20，则 −
| Sr.No | 运算符和说明 | 示例 |
|---|---|---|
| 1 | + 加法 在运算符的两侧添加值。 | a + b = 30 |
| 2 | - 减法 从左侧操作数中减去右侧操作数。 | a – b = -10 |
| 3 | * 乘法 将运算符两侧的值相乘 | a * b = 200 |
| 4 | / 除法 将左侧操作数除以右侧操作数 | b / a = 2 |
| 5 | % 模数 % 模数 | b % a = 0 |
| 6 | ** 指数 对运算符执行指数(幂)计算 | a**b =10 的幂20 |
| 7 | // 向下取整除法 - 操作数的除法，其结果是删除小数点后数字的商。但如果其中一个操作数为负数，则结果向下取整，即从零开始舍入(朝向负无穷大)减去 | 9//2 = 4 且 9.0//2.0 = 4.0，-11//3 = -4，-11.0//3= -4.0 |
示例
假设变量 a 保存 21，变量 b 保存 10，则 −
#!/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 ", 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 Line 5 - Value of c is 1 Line 6 - Value of c is 8 Line 7 - Value of c is 2
