function multiplicar() { m1 = document.getElementById("multiplicando").value; m2 = document.getElementById("multiplicador").value; m3 = m2 * 0.01; x = m3 * parseFloat(m1); x1 = x - 2380000; document.getElementById("resultado").value = x1.toLocaleString();}const numberWithCommas = (x) => { return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");}function Sumar() { var n1 = 1; var n2 = document.getElementById('multiplicador').value; var suma = parseInt(n1) + parseInt(n2); document.getElementById("multiplicador").value = suma; multiplicar();}function resta() { var r1 = 1; var r2 = document.getElementById('multiplicador').value; var resta = parseInt(r2) - parseInt(r1); document.getElementById("multiplicador").value = resta; multiplicar();}<form id="multiplicar"> <div class="container-block"> <label>$</label> <input type="text" name="multiplicando" id="multiplicando" value="300000000" onChange="multiplicar();" onkeydown="noPuntoComa( event )" placeholder="Escribe el valor"> </div> <div class="container-block"> <input type="button" onclick="resta();" value="-" class="resta"> <div class="container-input"> <input type="text" name="multiplicador" id="multiplicador" value="3" onChange="multiplicar();" onkeyUp="multiplicar();" min="0" pattern="^[0-9]+"> <label style=" right: 130px;">%</label> </div> <input type="button" onclick="Sumar();" value="+" class="suma"> </div> <div class="container-block-resultado"> <label>$</label> <input type="text" id="resultado"> </div></form>我正在學習一些JavaScript，我想使用數千個數學運算。示例：300,000,000 * 3％= 900,000這是應該顯示給用戶的內容，用戶可能會像計算器一樣提高或降低百分比或值，而我找不到如何將數字相乘并以javascript中的百分比表示
如何在JavaScript中成千上萬？
呼喚遠方
2021-04-02 18:15:38
