Question

我试图传入一个对象，以便它会被定义的方法 infection 修改。但是，当我确实传递它时，如下所示，它只传递一次。这是我第一次制作动态对象，所以我不太确定如何让它继续下去。

class Region:
    def __init__(self, name, population, cases, deaths):
        self.name = name
        self.population = population
        self.cases = cases
        self.deaths = deaths
        print(name, cases)       

    def infection(self, name, population, cases):
        while population > cases:
            cases = cases + 1
            return (cases)        
    
westernEurope = Region("Western Europe", 1000000, 0, 0)
print(westernEurope.infection("Western Europe", 1000000, 0))

我想要发生的是感染方法应该不断增加，直到达到病例数，但我还需要能够打印每个增量。非常感谢任何帮助。

Answer 1

您的代码存在缩进问题。

这应该可以满足您的要求：

class Region:
    def __init__(self, name, population, cases, deaths):
        self.name = name
        self.population = population
        self.cases = cases
        self.deaths = deaths
        print(name, cases)       

    def infection(self, name, population, cases):
        while population > cases:
            cases = cases + 1
            print(cases)
        return (cases)        
    
westernEurope = Region("Western Europe", 1000000, 0, 0)
print(westernEurope.infection("Western Europe", 1000000, 0))

Answer 2

Infection() 改变类属性 case 并在每次循环时打印

class Region:
    def __init__(self, name, population, cases, deaths):
        self.name = name
        self.population = population
        self.cases = cases
        self.deaths = deaths
    
    def infection(self):
        while self.population > self.cases:
            self.cases += 1
            print(self.name, self.cases)        
    
westernEurope = Region("Western Europe", 100, 0, 0)
westernEurope.infection()

Answer 3

这是因为return立即终止了函数的运行，所以函数中不要有while循环，而是在你的main区域，像这样：

def infection(self, name, population, cases):
    cases = cases + 1

while population > cases:
    infection(pass all parameters)

将对象动态传递给类方法

3 个答案: