[Python知识库] python 类程序

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[Python知识库]python 类程序

# 创建类名
class printTest():
    def printColor(self,color):
        print("打印颜色：%s" % (color))
        
    def printNum(self,num):
        print("打印数字：%d" % (num))

    def printWeight(self,weight):
        print("打印重量：%f" % (weight))

# 类的实例化
c = printTest()
c.printColor("白色")
c.printNum(6)
c.printWeight(50.7)

# 创建类名
class printTest():
    color = "蓝色"
    num = 9
    weight = 86.7

    def __init__(self,color,num,weight):
        self.color  = color
        self.num    = num
        self.weight = weight

    def printColor(self):
        print("打印颜色：%s" % (self.color))
        
    def printNum(self):
        print("打印数字：%d" % (self.num))

    def printWeight(self):
        print("打印重量：%f" % (self.weight))

# 类的实例化
c = printTest("白色",6,34.5,)
c.printColor()
c.printNum()
c.printWeight()
print()
print(c.color)
print(c.num)
print(c.weight)
print()

print(printTest.color)
print(printTest.num)
print(printTest.weight)
print()

printTest.color = "黑色"
printTest.num = 3
printTest.weight = 20.1
print(printTest.color)
print(printTest.num)
print(printTest.weight)
print()

# 创建类名
# 父类
class printTestA:
    def __init__(self):
        self.num = printTestA
        
    def printNumA(self):
        print("打印数字A：%d" % (self.num))

class printTestB:
    def __init__(self):
        self.num = printTestB
        
    def printNumB(self):
        print("打印数字B：%d" % (self.num*10))

# 子类
class printTestAB(printTestA, printTestB):
    pass

# 类的实例化
c = printTestAB()
c.num = 9
c.printNumA()
c.printNumB()