one element的用法和樣例：
例句
- You can interact with fields easily by a single form element, serialize form and fields.
幾乎每個(gè)項目我都需要創(chuàng )建網(wǎng)頁(yè)風(fēng)格和驗證表單元素。 - Attribute to indicate which form element should receive input focus when the document is loaded.
屬性指定加載文檔時(shí)哪一個(gè)表單元素擁有輸入焦點(diǎn)。
