需要在合适的读子场景子表单中对字段的可视化表示进行编码，在编辑子场景子表单中对编辑模式表示进行编码。
The visual representation of the field needs to be coded within the appropriate read subscene subform, and the edit mode representation needs to be coded within the edit subscene subform.
有一种普遍的观点是，如果只是要读一个对象的字段，不需要请求加锁，尤其是在JLS保证了32位读操作的原子性的情况下，它更是如此。
It is a commonly held belief that you do not need to acquire a lock to simply read an object's fields, especially since the JLS guarantees that 32-bit reads will be atomic.
这样便为每个读/写元素创建了输入字段并且为 subtotal 创建了一个标签。
This creates an input field for each read/write element and a label for the subtotal.
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