Python算術運算符
以下假設變量a為10，變量b為20：
| 運算符 | 描述 | 實例 |
|---|---|---|
| + | 加 - 兩個對象相加 | a + b 輸出結果 30 |
| - | 減 - 得到負數或是一個數減去另一個數 | a - b 輸出結果 -10 |
| * | 乘 - 兩個數相乘或是返回一個被重復若干次的字符串 | a * b 輸出結果 200 |
| / | 除 - x除以y | b / a 輸出結果 2 |
| % | 取模 - 返回除法的余數 | b % a 輸出結果 0 |
| ** | 冪 - 返回x的y次冪 | a**b 輸出結果 20 |
| // | 取整除 - 返回商的整數部分 | 9//2 輸出結果 4 , 9.0//2.0 輸出結果 4.0 |
以下實例演示了Python所有算術運算符的操作：
#!/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
以上實例輸出結果：
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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