__keyDown(selectId,selectIndex);
break;
case 38:
//up
//$(‘#value2’).append(‘原始值：’+selectIndex+’ <br>’);
$(‘#’+selectId+’ > div > ul > li’).removeClass(“over”);
if (selectIndex == 0){
selectIndex = 0;
}else{
selectIndex–;
};
//$(‘#value2’).append(‘<span style=”color:red;” style=”color:red;”>向上改变的aa值：</span>’+selectIndex+’ ‘);
__keyDown(selectId,selectIndex);
break;
case 40:
//down
//$(‘#value2’).append(‘传递过来的：’+selectIndex+’ ‘);
$(‘#’+selectId+’ > div > ul > li’).removeClass(“over”);
if (selectIndex == ($(‘#’+selectId+’ > select > option’).length – 1)){
selectIndex = $(‘#’+selectId+’ > select > option’).length – 1;
}else{
