第23章可扩展超文本标记语言( XHTMLY 表23-7表单元素事件 属性 明 onchange Script to be run when the element chang SCIT onsubmit Script to be run when the form is submitted onreset Script to be run when the form is reset onselect Script to be run when the element is selected SCr Onblur Script to be run when the element loses focus Onfocus Script to be run when the element gets the focus 表23-8键盘事件 属性 说明 What to do when key pressed onkeypress What to do when key pressed and released onkeyup What to do when key released 不用键盘事件的标签:base,bdo,br, frame, frameset,head,htm, iframe,meta, param, script style, title 表23-9鼠标器事件 What to do on a mouse click ondblclick script What to do on a mouse doubleclick onmousedown script What to do when mouse button is pressed onmousemove scripT What to do when mouse pointer moves onmouseover script What to do when mouse pointer moves over an element nmouseout What to do when mouse pointer moves out of an element onmouseup What to do when mouse button is released 不用鼠标器事件的标签:base,bdo,br, frame, frameset,head,html, iframe,meta, param, cript, style, title 练习与思考题 23.1. XHTML是什么? 232. XHTML是web标准? 233.XML和HIML要被 XHTML取代吗? 234.HIML要被 XHTML取代吗?第 23 章 可扩展超文本标记语言(XHTML) 10 表 23-7 表单元素事件 属性 值 说明 onchange scri pt Script to be run when the element changes onsubmit scri pt Script to be run when the form is submitted onreset scri pt Script to be run when the form is reset onselect scri pt Script to be run when the element is selected Onblur scri pt Script to be run when the element loses focus Onfocus scri pt Script to be run when the element gets the focus 表 23-8 键盘事件 属性 值 说明 onkeydown scri pt What to do when key pressed onkeypress scri pt What to do when key pressed and released onkeyup scri pt What to do when key released 不用键盘事件的标签：base, bdo, br, frame, frameset, head, html, iframe, meta, param, script, style, title。 表 23-9 鼠标器事件 属性 值 说明 onclick script What to do on a mouse click ondblclick script What to do on a mouse doubleclick onmousedown script What to do when mouse button is pressed onmousemove script What to do when mouse pointer moves onmouseover script What to do when mouse pointer moves over an element onmouseout script What to do when mouse pointer moves out of an element onmouseup script What to do when mouse button is released 不用鼠标器事件的标签：base, bdo, br, frame, frameset, head, html, iframe, meta, param, script, style, title。 练习与思考题 23.1. XHTML 是什么？ 23.2. XHTML 是 Web 标准？ 23.3. XML 和 HTML 要被 XHTML 取代吗？ 23.4. HTML 要被 XHTML 取代吗？