本文共 1104 字，大约阅读时间需要 3 分钟。
| <body> |
| | <table id="tb" border="1"> |
| | <tbody id="tbd"> |
| | <tr> |
| | <td>猪猪:</td> |
| | <td>我喜欢吃肉</td> |
| | </tr> |
| | </tbody> |
| | </table> |
| | <div> |
| | 昵称:<input type="text" value="" id="userName"/><br/> |
| | <textarea name="" id="tt" cols="30" rows="10"></textarea><br/> |
| | <input type="button" value="评论一下" id="btn"/><br/> |
| | </div> |
| | <script src=""></script> |
| | <script> |
| | //获取按钮,注册点击事件 |
| | document.getElementById("btn").onclick = function () { |
| | //获取昵称的元素 |
| | var userName = my$("userName"); |
| | //获取评论的元素 |
| | var tt = my$("tt"); |
| | //创建行 |
| | var tr = document.createElement("tr"); |
| | //行加到tbody中 |
| | my$("tbd").appendChild(tr); |
| | //创建列 |
| | var td1 = document.createElement("td"); |
| | tr.appendChild(td1); |
| | td1.innerHTML = userName.value; |
| | //创建列 |
| | var td2 = document.createElement("td"); |
| | tr.appendChild(td2); |
| | td2.innerHTML = tt.value; |
| | //清空 |
| | userName.value = ""; |
| | tt.value = ""; |
| | }; |
| | |
| | var arr=[20,10,40,50,30]; |
| | for(var i=0;i<arr.length-1;i++){ |
| | for(var j=0;j<arr.length-1-i;j++){ |
| | if(arr[j]<arr[j+1]){ |
| | var temp=arr[j]; |
| | arr[j]=arr[j+1]; |
| | arr[j+1]=temp; |
| | }//end if |
| | }// end for |
| | }//end for |
| | for(var i=0;i<arr.length;i++){ |
| | console.log(arr[i]); |
| | } |
| | </script> |
| | |
| | </body> |
转载于:https://www.cnblogs.com/pink-chen/p/10561990.html