subtype

江上清风山间明月1 年前
flutter·future·subtype·cast·type
Flutter开发type ‘Future＜int＞‘ is not a subtype of type ‘int‘ in type cast错误今天有个同事调试flutter程序时报错，问我怎么解决，程序运行时报如下错误： type ‘Future’ is not a subtype of type ‘int’ in type cast