I really begin coding in the Objective-c today, although the mac mechine which belonged to me have not arrive, I remote control a old mac machine which usually used by test team. It is have the development must softwares in this mechine, so I can use it to code at once. For a book's guide, I quick learn from this book how to use the IDE which named xcode. This book explain a simple project very detailed, and remote control machine runs very fast, so I writed code easy and smoothly. In the first project, I have learned the project structure and it's means, and have learned how to display controls and add events to a control and how to link a control to a ViewController. Of course, I also have learned how to display a alert and confirm controls. But the contorls I used is not very beauty, so I should continue learn how to beartification controls.