如何編寫一個 javaScript 函數通過提示輸入 2 個數字並在警報中顯示這些數字的總和？

Question

我想顯示這個：輸入您的號碼：第一：第二：答案：我嘗試這樣做：

var a = prompt("A : ", "");
var b = prompt("B : ", "");
function calc(a,b)
{
   return a + b;
}
alert ("The addition is =" + calc(a,b);

Answer 1

只需一個提示即可：

var numbers = prompt("Enter two numbers separated by a semi-colon: ", "");
var a = numbers.split(";")[0];
var b = numbers.split(";")[1];

function calc(a,b)
{
   return parseFloat(a) + parseFloat(b);
}
alert ("The addition of " + numbers + " is = " + calc(a,b));

Answer 2

您只需要解析提示中的返回

 var a = prompt("A : ", ""); var b = prompt("B : ", ""); function calc(a,b) { return parseFloat(a) + parseFloat(b); } alert ("The addition is =" + calc(a,b));