It can print all the attributes of the current element as in Listing 4.
也可打印当前元素的所有属性，如清单4所示。
The mapping should start with topic, and finish with the current element type.
映射应该从主题开始，到当前元素类型结束。
Removes focus from the current element, if that element has focus.
如果目前的项目有焦点，则移除它的焦点。
This function is called with a context equal to the current element.
这个函数的执行环境是当前元素。
The pos() function returns the value of the current element in an array.
函数返回了数组中当前元素的值。
The current function returns the value of the current element in an array.
函数的作用是：返回数组中当前元素的值。
Instead, it shows the path from the current element to the outermost parent.
而显示从当前元素到最外面的父元素的路径。
Reads the current element value as a single-precision floating-point number.
将当前元素值作为单精度浮点数读取。
Reads the current element value as a single-precision floating-point number.
将当前元素值作为单精度浮点数读取。
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