1.1 Creating mixins via the @mixin ruleMixins allow document authors to define patterns of property value pairs, which can then be reused in other rulesets. The mixin name is a class selector that ide
//mixin_same_method.dart文件
//类A
class A {
//同名方法A
String getMessage() => 'A';
}
//类B
class B {
//同名方法 返回B
String getMessage() => 'B';
}
//类P
class P {
//同名方法 返回P
String get
//mixin_object_type.dart文件
//类A
class A {
//同名方法A
String getMessage() => 'A';
}
//类B
class B {
//同名方法 返回B
String getMessage() => 'B';
}
//类P
class P {
//同名方法 返回P
String get
