Python算术运算符实例详解

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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yb / 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 = 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 

以上实例输出结果:

 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 

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