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为什么同时重新 getter 和 setter 方法时,访问不了_属性?怎么才能同时重写 getter 和 setter 方法,小白求教!
This will indeed prompt an error, you need to add a line:
@synthesize city = _city;
After encapsulation, attributes can only be accessed through the encapsulation method. Change _city to self.city. I don’t know if that’s right
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This will indeed prompt an error, you need to add a line:
After encapsulation, attributes can only be accessed through the encapsulation method. Change _city to self.city. I don’t know if that’s right