Reroute all Submit buttons and key-up events (that is, an event that occurs whenever you type a character on your keyboard) to a new function you're going to create called ajax_search .
将所有Submit按钮和key - up事件(即在通过键盘键入字符时发生的事件)重新指向到一个将要创建的新函数，称为ajax_search 。
Camera controls: to rotate the camera around a character, click and hold the left mouse button while moving the mouse left and right, or click the arrow buttons in the top left of the window.
镜头控制：通过左击按住鼠标左右移动人物，可以旋转模型镜头，或者单击窗口左上角的箭头按钮。
The rest is understanding the principles of animation and physics and knowing which buttons to push in order to move the character.
然后才是对动画基本原理以及对自然规律的理解，知道怎样操作才能让角色动起来。
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