Question

我的问题是当我发表评论＆＃34;返回maxID;＆＃34;我得到了我拥有的ID数组的结果（例如1 2 3 4 5）但是如果我尝试返回maxID，结果是1而不是5.为什么？怎么解决？这是我的代码：

Sub RunFile()
    Call ExecuteShell("C:\", "LAPBTN1749", "filename.sql")
End Sub

Sub ExecuteShell(path As String, hostname As String, file As String)
    Dim retval
    retval = Shell("SQLCMD -E -S " & Chr$(34) & hostname & "\SQLEXPRESS" & Chr$(34) & " -i " _
        & Chr$(34) & path & file & Chr$(34), vbMinimizedFocus)
End Sub

Answer 1

return太早了，它在循环中，你在第一行之后留下success。

基本上return在ajax-callback中无用，只需在maxID的末尾打印success。

修正$.ajax - 致电：

   // Send the JSONP request using jQuery
   $.ajax({
     url: url.join(''),
     dataType: 'jsonp',
     success: function(data) {
       var rows = data['rows'];
       maxID = 0;
       //don't use for-in-loops to iterate over arrays
       //for (var i in rows) {
       for (var i = 0; i < rows.length; ++i) {
         var rec = rows[i][0];
         var collection = rows[i][1];
         var idValue = parseInt(collection);
         if (idValue > maxID){maxID = idValue;}
          var dataElement = document.createElement('div');
          var recElement = document.createElement('p');
          recElement.innerHTML = rec;
          var collectionElement = document.createElement('p');
          collectionElement.innerHTML = collection;
        }
        //you shouldn't use write after the document has been loaded
        //document.write(maxID);
        document.body.innerHTML = maxID;
      }
    });

为什么返回值不是最大值？

1 个答案: