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【单选题】
如果容器组件 b 的布局是 GridLayout ,共分为4行2列,则 应该使用的语句是( )A.
b.setLayout(4,2);
B.
b.setGridLayout(4,2);
C.
b.setLayout(new GridLayout(4,2));
D.
b.setLayout(new GridLayout(2,4));
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