摘要: --脱机(一般没啥用)ALTER DATABASE [数据库名称] SET OFFLINE WITH ROLLBACK IMMEDIATE; --分离ALTER DATABASE [数据库名称] SET SINGLE_USER WITH ROLLBACK IMMEDIATE;goEXEC sp_de 阅读全文
posted @ 2025-01-15 11:35 一步一个坑 阅读(252) 评论(0) 推荐(0)
摘要: 方法一:使用delete关键字 // 定义JSON对象 var obj = {name: "Alice", age: 25, city: "Beijing"}; // 移除属性 delete obj.age; console.log(obj); // 输出: {name: "Alice", city 阅读全文
posted @ 2025-01-15 10:06 一步一个坑 阅读(337) 评论(0) 推荐(0)