我正在为分配计算器编程,并且正在努力将每个按钮单击的值附加到我的显示框。例如,如果我单击按钮“ 4”,然后单击“ 5”,则我希望显示器输出“ 45”,依此类推,以便评估显示框中的内容。当我单击计算器上的一个按钮时,该数字将正确显示,但是此后不会再添加任何并发值。如果在键盘上键入显示,我还创建了equal函数以正确运行。<!DOCTYPE html><head> <link href="project4.css" rel="stylesheet"> <title>Calculator</title> </head> <body> <div id="calculator"> <h3>Calculator</h3> <input type="text" id="display" onClick= "append()"><br /> <input type="button" value="mrc" class="memory"> <input type="button" value="m+" class="memory"> <input type="button" value="m-" class="memory"> <input type="button" value="/" class="operator" onClick= "setDivide()"><br /> <input type="button" value="7" class="number" onClick= "setSeven()"> <input type="button" value="8" class="number" onClick= "setEight()"> <input type="button" value="9" class="number" onClick= "setNine()"> <input type="button" value="*" class="operator" onClick= "setMultiply()"><br /> <input type="button" value="4" class="number" onClick= "setFour()"> <input type="button" value="5" class="number" onClick= "setFive()"> <input type="button" value="6" class="number" onClick= "setSix()"> <input type="button" value="+" class="operator" onClick="setAdd()"><br /> <input type="button" value="1" class="number" onClick= "setOne()"> <input type="button" value="2" class="number" onClick= "setTwo()"> <input type="button" value="3" class="number" onClick= "setThree()"> <input type="button" value="-" class="operator" onClick= "setSubtract()"><br /> <input type="button" value="0" class="number" onClick= "setZero()"> <input type="button" value="." value="." class="number" onClick= "setDecimal()"> <input type="button" value="C" class="clear" onClick= "setClear()"> <input type="button" value="=" class="equal" onClick= "setEquals()"> </div>
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