钢铁厂
Calculate date from numeric value
The number 71867806 represents the present day, with the smallest unit of days. Sorry guy\'s, caching owned me, it\'s actually milliseconds![详细]
2022-12-27 12:49 分类:问答Set the title of a UIButton with a single method invocation?
I\'d like to set the title of a UIButton via code. I find myself having to call -[UIButton setTitle:forState:] for UI开发者_运维百科ControlStateNormal, UIControlStateHighlighted, UIControlStateDisable[详细]
2022-12-23 18:16 分类:问答Require anonymous user to register to add content-type
How can I create a form that requires anonymous viewers to register in order to view it? Right now, I\'ve created a content-type (Submit Plan) which is a primary link available to everyone (anonymous[详细]
2022-12-23 14:52 分类:问答-
阻尼器的原理和作用 阻尼器的原理和作用视频
品牌型号:海蒂诗卡入式阻尼缓冲器 系统:Intermat阻尼器的原理:利用阻尼特性来减缓机械振动及消耗动能。作用:使自由振动衰减的各种摩擦和其他阻碍。液压阻尼器是一种对速度反应灵敏的振动控制装置,主要[详细]
2022-12-03 16:30 分类:问答