更新 colorpicker 示例

examples/colorpicker.html

@@ -88,7 +88,7 @@ body{padding:20px;}
     
     colorpicker.render({
       elem: '#test3'
-      ,color: 'rgba(0,0,0)'
+      ,color: '#000'
       //,alpha: true
       //,format: 'rgb' //设置输入显示格式为rgb
     });