在尝试使用类和方法进行实验以及如何在它们之间传递变量时,我编写了几个脚本来尝试理解这些机制。这样做我遇到了一个问题,我的一个函数是未定义的:
NameError: name 'exclaim' is not defined
我认为使用自我可能会解决但我只是循环进入
NameError: name 'self' is not defined
我遇到过几个关于这个问题的消息来源,让我看一下方法的缩进级别,并通过HelloWorld.exclaim()调用它来解决同样的问题。
请看我的代码:(script1)
import datasource
class HelloWorld:
def exclaim():
number1 = input("enter a number")
datasource.Class2.method3.impvariable1 = number1
def main():
HelloWorld.exclaim()
print(datasource.Class1.method1.variable1)
print(datasource.Class2.method2.variable2)
print(datasource.Class2.method3.variable3)
if __name__ == '__main__':
main()
SCRIPT2:
#datasource.py
class Class1:
def method1():
variable1 = "Hello "
class Class2:
def method2():
variable2 = "World"
def method3():
impvariable1 = 0
variable3 = "!"
for x in range(impvariable1):
variable3 = variable3 + "!"
我也尝试过(100次其他迭代)
#datahandler.py
import datasource
class HelloWorld:
def exclaim(self):
number1 = input("enter a number")
datasource.Class2.method3.impvariable1 = number1
def main(self):
HelloWorld.exclaim(self)
print(datasource.Class1.method1.variable1)
print(datasource.Class2.method2.variable2)
print(datasource.Class2.method3.variable3)
if __name__ == '__main__':
main(self)
产生;
NameError: name 'self' is not defined
import datasource
class HelloWorld:
def exclaim(self):
number1 = input("enter a number")
datasource.Class2.method3.impvariable1 = number1
def main():
obj = HelloWorld()
obj.exclaim()
print(datasource.Class1.method1.variable1)
print(datasource.Class2.method2.variable2)
print(datasource.Class2.method3.variable3)
if __name__ == '__main__':
main()