將參數傳遞給函數的Javascript

Question

嘿，我似乎無法正常工作，我對應該如何傳遞顏色參數感到有些困惑：

function colourGreen(red, green, blue)
        {
            document.getElementById("button1").style.backgroundColor = 'rgb(red,green,blue)';
        }

............. .............

<input type="button" id = "button2" value="Price up" onclick = 'colourGreen(0,255,0)'>

Answer 1

我猜這應該可以解決問題

function colourGreen(red, green, blue)
        {
            document.getElementById("button1").style.backgroundColor = 'rgb('+red+','+green+','+blue')';
        }

Answer 2

...'rgb('+red+','+green+','+blue+')';

Answer 3

.style.backgroundColor = 'rgb(' + red +', ' + green + ', ' + blue ')';