的Javascript传递参数到功能

Question

嘿，我似乎无法得到这个工作，即时通讯IM上应该如何通过颜色PARAMATERS有点糊涂：

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

我猜这应该做的伎俩

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 ')';