Python算术运算符
以下假设变量a为10，变量b为20：
| 运算符 | 描述 | 实例 |
|---|---|---|
| + | 加 - 两个对象相加 | a + b 输出结果 30 |
| - | 减 - 得到负数或是一个数减去另一个数 | a - b 输出结果 -10 |
| * | 乘 - 两个数相乘或是返回一个被重复若干次的字符串 | a * b 输出结果 200 |
| / | 除 - x除以y | b / a 输出结果 2 |
| % | 取模 - 返回除法的余数 | b % a 输出结果 0 |
| ** | 幂 - 返回x的y次幂 | a**b 输出结果 20 |
| // | 取整除 - 返回商的整数部分 | 9//2 输出结果 4 , 9.0//2.0 输出结果 4.0 |
以下实例演示了Python所有算术运算符的操作：
#!/usr/bin/python a = 21b = 10c = 0 c = a + bprint "Line 1 - Value of c is ", c c = a - bprint "Line 2 - Value of c is ", c c = a * bprint "Line 3 - Value of c is ", c c = a / bprint "Line 4 - Value of c is ", c c = a % bprint "Line 5 - Value of c is ", c a = 2b = 3c = a**bprint "Line 6 - Value of c is ", c a = 10b = 5c = a//bprint "Line 7 - Value of c is ", c
以上实例输出结果：
Line 1 - Value of c is 31Line 2 - Value of c is 11Line 3 - Value of c is 210Line 4 - Value of c is 2Line 5 - Value of c is 1Line 6 - Value of c is 8Line 7 - Value of c is 2
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