简单讲解Python中的数字类型及基本的数学计算
发布时间:2020-12-16 20:53:21 所属栏目:Python 来源:网络整理
导读:Python有四种类型的数字: 1.整型 a = 2 print a 2.长整型 b = 123456789 print b 3.浮点数 c = 3.2E2 print c 4.复数 复数为实数的推广,它使任一多项式都有根。复数当中有个“虚数单位”j,它是-1的一个平方根。任一复数都可表达为x+yj,其中x及y皆为实数
Python有四种类型的数字: a = 2 print a 2.长整型 b = 123456789 print b 3.浮点数 c = 3.2E2 print c 4.复数 复数为实数的推广,它使任一多项式都有根。复数当中有个“虚数单位”j,它是-1的一个平方根。任一复数都可表达为x+yj,其中x及y皆为实数,分别称为复数之“实部”和“虚部”。 d = (2+3j) print d
计算示例: print "I will now count my chickens:" print "Hens",25 + 30 / 6 print "Roosters",100 - 25 * 3 % 4 print "Now I will count the eggs:" print 3 + 2 + 1 - 5 + 4 % 2 - 1 / 4 + 6 print "Is it true that 3 + 2 < 5 - 7?" print 3 + 2 < 5 - 7 print "What is 3 + 2?",3 + 2 print "What is 5 - 7?",5 - 7 print "Oh,that's why it's False." print "How about some more." print "Is it greater?",5 > -2 print "Is it greatet or equal?",5 >= -2 print "is it less or equal?",5 <= -2
root@he-desktop:~/mystuff# python ex3.py I will now count my chickens: Hens 30 Roosters 97 Now I will count the eggs: 7 Is it true that 3 + 2 < 5 - 7? False What is 3 + 2? 5 What is 5 - 7? -2 Oh,that's why it's False. How about some more. Is it greater? True Is it greatet or equal? True is it less or equal? False
my_height_centimeter = my_height * 2.54 my_weight_kilo = my_weight * 0.4536 print "He's %d centimeters tall." % my_height_centimeter print "He's %d kilos heavy." % my_weight_kilo
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