class Singleton {
static final Singleton _singleton = Singleton._internal();
factory Singleton() => _singleton;
Singleton._internal();
}
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← Dart代码编写规则 dio的简单封装 →
class Singleton {
static final Singleton _singleton = Singleton._internal();
factory Singleton() => _singleton;
Singleton._internal();
}
← Dart代码编写规则 dio的简单封装 →