我用MATLAB7.0以上的版本画了个GUI界面。在第一次运行界面时，系统都能正常运行的，但是，当我换过数据之后会丢失焦点！！！求牛人帮忙找下原因
谢谢了
第一次运行
hf =
190.0010
x =
Columns 1 through 12
1.0000 0.9969 0.9877 0.9724 0.9511 0.9239 0.8910 0.8526 0.8090 0.7604 0.7071 0.6494
Columns 13 through 24
0.5878 0.5225 0.4540 0.3827 0.3090 0.2334 0.1564 0.0785 0.0000 -0.0785 -0.1564 -0.2334
Columns 25 through 36
-0.3090 -0.3827 -0.4540 -0.5225 -0.5878 -0.6494 -0.7071 -0.7604 -0.8090 -0.8526 -0.8910 -0.9239
Columns 37 through 48
-0.9511 -0.9724 -0.9877 -0.9969 -1.0000 -0.9969 -0.9877 -0.9724 -0.9511 -0.9239 -0.8910 -0.8526
Columns 49 through 60
-0.8090 -0.7604 -0.7071 -0.6494 -0.5878 -0.5225 -0.4540 -0.3827 -0.3090 -0.2334 -0.1564 -0.0785
Columns 61 through 72
-0.0000 0.0785 0.1564 0.2334 0.3090 0.3827 0.4540 0.5225 0.5878 0.6494 0.7071 0.7604
Columns 73 through 84
0.8090 0.8526 0.8910 0.9239 0.9511 0.9724 0.9877 0.9969 1.0000 0.9969 0.9877 0.9724
Columns 85 through 96
0.9511 0.9239 0.8910 0.8526 0.8090 0.7604 0.7071 0.6494 0.5878 0.5225 0.4540 0.3827
Columns 97 through 101
0.3090 0.2334 0.1564 0.0785 0.0000
第二次运行
hf =
190.0010
x =
Columns 1 through 20
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Columns 21 through 40
1 1 1 1 1 1 1 1 1 1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
Columns 41 through 60
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
Columns 61 through 80
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Columns 81 through 100
1 1 1 1 1 1 1 1 1 1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
Column 101
-1
??? Error using ==> axes
Invalid object handle.
Error in ==> plot_modulate at 37
axes(h_axes2);
??? Error while evaluating uicontrol Callback.
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