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我正在表单开发人员 11g 上创建计算器
我想在一个显示项中显示多个值,例如 1 + 1
我有多个按钮,例如 1,2,3... 等等
如前所述,使用串联;每个按钮都有自己的WHEN-BUTTON-PRESSED触发器并执行
WHEN-BUTTON-PRESSED
-- WBP on digit '1' button :block.item := :block.item || '1'; -- WBP on digit '2' button :block.item := :block.item || '2'; --WBP on the "+" sign button :block.item := :block.item ||'+';
等等。