录制过程中，只要你移动鼠标，录制窗口就会跟着指针移动。
The recording window automatically moves along with the pointer whenever you move the mouse during recording.
把鼠标指针移动到饼图的每个部分上，就会看到这种语句类型的百分比。
Move the pointer over each section of the pie chart to view the percentage for the statement type.
函数的作用是：将数组内部的指针移动到数组中的第一个元素。
The reset() function moves the internal pointer to the first element of the array.
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