如何使用DebtsProvider查询融券负债列表？

使用DebtsProvider查询融券负债列表，具体用法见示例一：

示例1：使用DebtsProvider查询融券负债列表

using guosen;

vars:DebtsProvider DP(null);
method void AnalysisTechnique_Initialized( elsystem.Object sender, elsystem.InitializedEventArgs args ) 
begin
    DP = new DebtsProvider;
    //DP.Accounts += getMarginAccount();
    DP.StateChanged += DP_StateChanged;
    DP.Load = TRUE;
end;

Method void DP_StateChanged(elsystem.object sender,tsdata.common.StateChangedEventArgs args)
vars:int loop;
Begin
    if(args.NewState = tsdata.common.DataState.loaded)then
    Begin
        print("Debts总数：",DP.Count);
        For loop = 0 to DP.Count-1
        Begin
            print("账户：",DP[loop].Account);
            print("可还数量：",DP[loop].DebtPayable);
            print("总数量：",DP[loop].DebtTotal);
            print("名称：",DP[loop].Description);
            print("市场：",DP[loop].Market);
            print("代码：",DP[loop].Symbol);
        End;
    End;
End;

//获取信用账户//
Method string getMarginAccount()
vars:string acct, int loop, int count;
Begin
    count = getnumaccounts();
    For loop = 1 to count
    Begin
        acct = getaccount(loop);
        if(Getaccounttype(acct) = 2)then
        Begin
            Return acct;
        End;
    End;
    Return "";
End;

//Debts总数：  14.00
//账户：110060035046
//可还数量： 100.00
//总数量： 100.00
//名称：浦发银行
//市场：SH
//代码：600000.SH