list構造創建編譯報錯,提示new List()構造不可用
error: The default 'List' constructor isn't available when null safety is enabled. (default_list_constructor at chapter2\data_type_list.dart:13)
error: The default 'List' constructor isn't available when null safety is enabled. (default_list_constructor at chapter2\data_type_list.dart:13)
2021-07-22
舉報
2022-11-19
版本不一樣吧
2021-08-05
這個是不為空的安全報錯,在聲明類型前價late 或者 聲明類型后加?