答案 0 :(得分:2)
另一种方法可以让你有多个数字类:
var p = 74; // your percentage from someplace
var colors = ['one','two','three']; // names of your css classes
var chosen = colors[0];
i = 1;
while(i < colors.length) {
var m = Math.round((i/colors.length) * 100);
if(p > m){
chosen = colors[i];
i++;
continue;
}
break;
}
console.log(chosen) // chosen now contains the array var you want depending on % p
答案 1 :(得分:1)
这是我的解决方案:http://jsfiddle.net/jKWFz/
var oMeter = $('.meter');
var percent = 100 * (oMeter.width() / $('#progress_bar').width());
if (percent < 33)
{
oMeter.css('background-color', 'green');
}
else if (percent > 33 && percent <= 66)
{
oMeter.css('background-color', 'orange');
}
else
{
oMeter.css('background-color', 'red');
}
编辑:如果内容是用AJAX加载的,你需要做的就是将上面的代码包装在一个函数中,并在加载内容时调用它。
例如:
更新了JSFiddle:http://jsfiddle.net/jKWFz/2/
function setupMeter() {
var oMeter = $('.meter');
var percent = 100 * (oMeter.width() / oMeter.closest('.meter-bg').width());
if (percent < 33) {
oMeter.css('background-color', 'green');
}
else if (percent > 33 && percent <= 66) {
oMeter.css('background-color', 'orange');
}
else {
oMeter.css('background-color', 'red');
}
}
// Example when loading from AJAX:
$.get("some_content.html", function(data) {
$('#container').html(data);
setupMeter();
});