標籤：pen org doc type char null rem set ack
新人，小白一枚，剛剛參加工作，所以會在這裡記錄一些遇到的問題。
最近要做的東西，是對一個表格動態添加行，刪除行，並且對錶格中內容進行非空驗證。
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title></title><script src="scripts/jquery-1.10.2.js"></script><script type="text/javascript">$(function () {//擷取表格的行數var tabRowLen = $("table tbody tr").length;//點擊add按鈕時，$("#add").on("click", function () {//擷取表格的行數tabRowLen = $("table tbody tr").length;var index = tabRowLen - 1;//表格行數為0時，或者表格不存在空值時if (IsNull(index) || tabRowLen == 0) {//添加一行$("table tbody").append("<tr>" +"<td><input type=‘text‘ class=‘Name‘/><div id=‘dName" + tabRowLen + "‘></div></td>" +"<td><input type=‘text‘ class=‘Age‘/><div id=‘dAge" + tabRowLen + "‘></div></td>" +"<td><input type=‘button‘ class=‘add‘ value=‘delete ‘ /></td></tr>");//刪除一行$(".add").on("click", function () {$(this).parents("tr").remove();});}//keyup事件$("table input").on("keyup", function () {//驗證是否有空值IsNull(index);});});function IsNull(trIndex) {var result = true;debugger;//遍曆表格的input$("table tbody input").each(function (trIndex) {//判斷是否存在空值if ($("table tbody input")[trIndex].value == "") {//提示空值result = false;$(this).next().html("required");}//不為空白else {//清空提示資訊$(this).next().html("");}});return result;};});</script></head><body><table><thead><tr><th>Name</th><th>Age</th><th><input type="button" id="add" value="addRow " /></th></tr></thead><tbody></tbody></table></body></html>
JQuery動態動作表格
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