textarea发布的内容，显示处理换行符

function AddBr(obj) {
        var Content = $(obj).html();
        var newContent = "";
        var m = Content.split(/[\n]/);
        for (var i = 0; i < m.length; i++) {
            newContent += m[i] + "<br />";
        }
        $(obj).html(newContent);
    }
function AddBr(obj) {
        var Content =