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我來到這個代碼,其中網格約束是負的行和列值。它意味着什麼?爲gridx
和gridy
什麼是網格佈局的負值指示
GridBagConstraints cons = new GridBagConstraints();
cons.gridx = 0;
cons.gridy = -2;
cons.gridwidth = 0;
cons.gridheight = 1;
cons.anchor = 10;
cons.fill = 0;