AakashRajni

您可以在创建时选择默认值

$.each(arrLoanType, function(index, value){
    if(value == selectedLoan)
        $("#loanType").append("<option value='"+index+"' selected>"+value+"</option>");
    else
        $("#loanType").append("<option value='"+index+"'>"+value+"</option>");
});

if else检查文本是否等于selected loan,并在创建本身中添加selected属性