为帮助您理解这里所讨论的每个项目与整个应用程序之间的关系，请参考图1架构图中显示的步骤。

To help in understanding where each item discussed fits into the big picture, the steps in the architecture diagram from Figure 1 are referred to.

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请记住，你不是到这里来释放感情的，你是来学习，理解并寻求结果的。

Remember, you're not there to vent. You're there to learn and understand and seek closure.

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要理解区别，请点击这里。

To understand the difference, click here.

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