4.3.10--JavaScript—事件驱动的使用案例（源代码）

!doctype htmlhtmlheadmetacharset=utf8事件驱动titleJavaScript/titlescriptfunction countTotal{日；var elements=document.get ementsByTagName“input”类型节点总数window.alertinput”+elements.length;}function submitValue{日var sv=document,get ementByldsubmit;按钮的是“+window.alert valuesv.value;}/script/headbodyform id=Hforml name=Hforml method=Hposttable width=300border=l cellspacing=O cellpadding=Otbodytr用户名td width=“20%”/tdtd width=80%input type=text name=inputl id=inputl,,x/td/trtr密码td/tdtdxinput type=password“name=,passwordl id=,,passwordl,,x/td/trtrtdnbsp;/td“提交tdxinput type=submit name=submit id=submit value=/tr/tbodyx/tablex/form统计子节点总数a href=javascript:void0;onClick=countTotal;”input/a二获取提交按钮内容a href=javascript:void0;onClick submitValue;”/a/bodyx/html。