摘要：update语法 UPDATE table_name SET column1=value1,column2=value2,... WHERE some_column=some_value; DELETE 语法 DELETE FROM table_name WHERE some_column=some 阅读全文

摘要：缺少编译器要求的成员“System.Runtime.CompilerServices.ExtensionAttribute..ctor” 解决方案 重新引用Newtonsoft.Json.dll 就可以解决 阅读全文