不匹配的else ，未定义if

Question

本帖最后由 updatedotnet 于 2010-11-29 17:27:59 编辑

Answer 1

var aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       if(document.getElementById('currentId').value==1){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list1" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==2){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list2" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==3){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list3" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==4){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list4" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                    
                      else { 
                        document.getElementById('v_content_box').innerHTML = '<span class="nocourse1"><img src="images/nocourse.png" width="661" height="294" border="0"/></span>'; 
                    }
  document.getElementById('v_content_box').innerHTML = aaa; 
                      insertData=""; 你这段代码不能放那儿

Answer 2

 document.getElementById('v_content_box').innerHTML = aaa; 
                      insertData=""; 你这两行代码把 if  else 的结构分开了。

Answer 3

 var aaa = '';
                       if(document.getElementById('currentId').value==1){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list1" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==2){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list2" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==3){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list3" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==4){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list4" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else{
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
if("" != aa){
document.getElementById('v_content_box').innerHTML = aaa; 
                      insertData=""; }
                                           else { 
                        document.getElementById('v_content_box').innerHTML = '<span class="nocourse1"><img src="images/nocourse.png" width="661" height="294" border="0"/></span>'; 
                    }

Answer 4

if("" != aa){
应该是
if("" != aaa){

Answer 5

var aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       if(document.getElementById('currentId').value==1){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list1" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==2){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list2" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==3){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list3" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                       else if(document.getElementById('currentId').value==4){
                           aaa = '<div class="v_content"><div id="cartoon_list" class="v_content_list4" style="top:0px; left:0px;">' + insertData + '</div> </div>';
                       }
                                          else { 
                        document.getElementById('v_content_box').innerHTML = '<span class="nocourse1"><img src="images/nocourse.png" width="661" height="294" border="0"/></span>'; 
                    }
 document.getElementById('v_content_box').innerHTML = aaa; 
                      insertData="";