Hallo Ich bin nur verwirrt darüber, wie man eine Variable auf diese Variable multipliziert mit sich selbst setzt. Nachdem ich viel im Internet nach verschiedenen Dingen gesucht habe, konnte ich es immer noch nicht zum Laufen bringen, obwohl es sich so anfühlt, als würde es funktionieren. Hier ist das Skript ...Multiplizieren von Variablen
var totalSmalls = (totalSmalls*smallPrice);
var totalMediums = (totalMediums*mediumPrice);
var totalLarges = (totalLarges*largePrice);
var totalNumber = totalsmalls + totalMediums + totalLarges;
die Variablen waren alle so weit wie ich sagen konnte. Ich werde auch das vollständige Programm befestigen ...
<!DOCTYPE html>
<html>
<title>PizzaLife</title>
<script>
\t
var smallPrice = 3.50;
var mediumPrice = 5.00;
var largePrice = 9.99;
var totalSmalls = 0;
var totalMediums = 0;
var totalLarges = 0;
var totalNumber = 0;
function calculateOrder()//calculate the number of smalls, larges and medium pizzas
{
var pizza = new Array()
var smallPizza = new Array()
smallPizza[0] = Number(document.form.smallP.value)
smallPizza[1] = Number(document.form.smallC.value)
smallPizza[2] = Number(document.form.small4.value)
smallPizza[3] = Number(document.form.smallT.value)
smallPizza[4] = Number(document.form.smallM.value)
var mediumPizza = new Array()
mediumPizza[5] = Number(document.form.mediumP.value)
mediumPizza[6] = Number(document.form.mediumC.value)
mediumPizza[7] = Number(document.form.medium4.value)
mediumPizza[8] = Number(document.form.mediumT.value)
mediumPizza[9] = Number(document.form.mediumM.value)
var largePizza = new Array()
largePizza[10] = Number(document.form.largeP.value)
largePizza[11] = Number(document.form.largeC.value)
largePizza[12] = Number(document.form.large4.value)
largePizza[13] = Number(document.form.largeT.value)
largePizza[14] = Number(document.form.largeM.value)
totalSmalls = smallPizza[0] + smallPizza[1] + smallPizza[2] + smallPizza[3] + smallPizza[4];
totalMediums = mediumPizza[5] + mediumPizza[6] + mediumPizza[7] + mediumPizza[8] + mediumPizza[9];
totalLarges = largePizza[10] + largePizza[11] + largePizza[12] + largePizza[13] + largePizza[14];
alert ("you have ordered " + totalSmalls + " Small pizzas " + totalMediums + " Mediums and " + totalLarges + " Larges.");
var totalSmalls = (totalSmalls*smallPrice);
var totalMediums = (totalMediums*mediumPrice);
var totalLarges = (totalLarges*largePrice);
var totalNumber = totalsmalls + totalMediums + totalLarges;
alert ("Your order will cost a total of $" + totalNumber + "yaaz");
}
function resetOrder() //to reset the page and order
{
if (confirm ("Are you sure you want to reset the order?") == true)
{
window.location.reload()
}
}
</script>
<body>
<p><font face = "jokerman" size="10" color="DarkGreen"><b>PizzaLife NZ</b></font>
<font face="jokerman" size="6" color="DarkGreen"><i> Online</i></font></p>
\t
<p><font face = "Arial Black" size = "2">Use the arrows to take your pick of our pizzas!</font><br>
<i>note: max per order is 99 pizzas</i></p>
<p>Large Pizza: $9.99 <br>Medium Pizza: $5.00 <br>Small Pizza: $3.50</p>
<form name = "form">
<font face = "Arial Black" size = "2">
<font face = "Arial Black" size = "2" color = "red">Pepperoni Pizza: </font><br>
Larges:<input type = "number" min = "0" max = "99" name = "largeP"> Mediums:<input type = "number" min = "0" max = "99" name = "mediumP"> smalls:<input type = "number" min = "0" max = "99" name = "smallP"><br>
<font face = "Arial Black" size = "2" color = "red">Cheesy Pizza: </font><br>
Larges:<input type = "number" min = "0" max = "99" name = "largeC"> Mediums:<input type = "number" min = "0" max = "99" name = "mediumC"> smalls:<input type = "number" min = "0" max = "99" name = "smallC"><br>
<font face = "Arial Black" size = "2" color = "red">4Meats Pizza: </font><br>
Larges:<input type = "number" min = "0" max = "99" name = "large4"> Mediums:<input type = "number" min = "0" max = "99" name = "medium4"> smalls:<input type = "number" min = "0" max = "99" name = "small4"><br>
<font face = "Arial Black" size = "2" color = "red">TooHot Pizza: </font><br>
Larges:<input type = "number" min = "0" max = "99" name = "largeT"> Mediums:<input type = "number" min = "0" max = "99" name = "mediumT"> smalls:<input type = "number" min = "0" max = "99" name = "smallT"><br>
<font face = "Arial Black" size = "2" color = "red">minceNcheese Pizza: </font><br>
Larges:<input type = "number" min = "0" max = "99" name = "largeM"> Mediums:<input type = "number" min = "0" max = "99" name = "mediumM"> smalls:<input type = "number" min = "0" max = "99" name = "smallM"><br>
</font>
</form>
<p>
---------------------‹<input type = "button" value = "reset" onclick = "resetOrder()"><input type = "button" value = "Get Em!" onclick = "calculateOrder()">›------------------------
</p>
</body>
</html>
* "wie man eine Variable auf diese Variable setzt, multipliziert mit ihr selbst" * - Ich kann nirgends in Ihrem Code sehen, wo Sie versuchen, eine Variable selbst zu multiplizieren. Aber 'x = x * x' oder' x * = x' ist alles was du brauchst. – nnnnnn
Sie verwenden nur Var, um eine Variable zu deklarieren. Einmal deklariert nicht var. Multiplizieren mit sich selbst. Zuerst deklariere es 'var num = 100' dann kannst du' num * = num' wie num = num * num' kannst du das selbe mit + = - = \ = und ein paar mehr machen – Blindman67