我有3个文本框(testbox,testbox2,testbox3),它们从输入字段、单选按钮选择和复选框/勾选中获取值。正确的值放入testbox3、testbox2、testbox中。然而,我需要测试框,testbox2,testbox3的总进入文本框‘总’-与总的变化,如果用户选择不同的单选按钮或勾选/取消勾选等。.value='0.00'; "/>
<input name
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