txt数据如下：

@Results
BeginTopModels
X1,X8 0.6077778
X1,X6 0.5977778
X1,X3 0.5927777
X1,X7 0.5894444
X1,X20 0.58805555
X1,X12 0.58777773
X6,X8 0.5872222
X1,X13 0.5825
X1,X5 0.5811111
X1,X15 0.5808333
X3,X17 0.58000004
X1,X14 0.5788889
X1,X4 0.57638884
X8,X16 0.57416666
X4,X15 0.5738889
X1,X9 0.5733334
X1,X11 0.5725
X2,X20 0.5719445
X1,X19 0.57166666
X4,X11 0.57138884
EndTopModels
Attr X1,X8 Train 170.0 10.0 129.0 51.0 0.0 Test 17.0 3.0 15.0 5.0 0.0
Attr X1,X6 Train 117.0 63.0 77.0 103.0 0.0 Test 9.0 11.0 11.0 9.0 0.0
Attr X1,X8 Train 168.0 12.0 130.0 50.0 0.0 Test 19.0 1.0 14.0 6.0 0.0
Attr X1,X6 Train 113.0 67.0 75.0 105.0 0.0 Test 13.0 7.0 13.0 7.0 0.0
Attr X1,X8 Train 171.0 9.0 129.0 51.0 0.0 Test 16.0 4.0 15.0 5.0 0.0
Attr X1,X8 Train 167.0 13.0 131.0 49.0 0.0 Test 20.0 0.0 13.0 7.0 0.0
Attr X1,X8 Train 168.0 12.0 131.0 49.0 0.0 Test 19.0 1.0 13.0 7.0 0.0
Attr X1,X8 Train 169.0 11.0 130.0 50.0 0.0 Test 18.0 2.0 14.0 6.0 0.0
Attr X1,X8 Train 124.0 56.0 86.0 94.0 0.0 Test 12.0 8.0 11.0 9.0 0.0
Attr X1,X8 Train 168.0 12.0 127.0 53.0 0.0 Test 19.0 1.0 17.0 3.0 0.0
Attr X1,X8 AvgTrain 153.5 26.5 114.5 65.5 0.0 AvgTest 16.2 3.8 13.6 6.4 0.0 Train 187.0 13.0 144.0 56.0 0.0 Summary 8
BeginModelDetail
0,1 48 32
0,0 12 16
0,2 22 13
1,1 51 47
1,0 47 39
1,2 0 16
2,1 1 20
2,0 19 13
2,2 0 4
EndModelDetail
@End

如何读入BeginTopModels和EndTopModels之间的内容？得到两列变量，谢谢！