摘要：问题的原因：插入或更新的数据中某些字段的值超过了数据库设置的字段长度。 解决方法：扩大数据库对应字段的长度 阅读全文

摘要：class Program { static void Main(string[] args) { List<Person> list = new List<Person> { new Person { id = 1, name = "李小龙", date = "2021-10-21" }, new 阅读全文

摘要：class Program { static void Main(string[] args) { List<Person> list = new List<Person> { new Person { id = 1, name = "李小龙", date = "2021-10-21" }, new 阅读全文

摘要：class Program { static void Main(string[] args) { List<string> ids = new List<string> { "1", "2", "3", "4", "5", "6", "7", "8" }; int count = Math.Min 阅读全文

摘要：String '20211011' was not recognized as a valid DateTime. 阅读全文