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dart method and property privatization

2022-08-07 22:11:00 【51CTO】

dart Method and property privatization

In some scenarios, the properties or methods in the class we encapsulate cannot be accessed by the outside world,那么如何做到呢,在javaAccess modifiers are provided in the language to fulfill this requirement,但dartNo modifiers are provided,So you can't use modifiers directly to privatize,但DartAnother way of writing is used to provide privatization,That is prepended to the property or method name_privatization can be achieved.
Before privatization

class Student{
int age;
String name;

read(){
print("I am a student class----$name");
}
}

     
    
      
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void main(){
  Student st = new Student();
  stu.name="张三";
  stu.read();
}

     
    
      
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私有化后

class Student{
int _age;
String _name;

_read(){
print("I am a student class----$name");
}
}

     
    
      
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void main(){
  Student st = new Student();
  //可以在ideTry this writing again in ,会有报错提示
  stu.name="张三";
  stu.read();
}

     
    
      
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