ajax回调函数传值问题

function getStatus1(){
var param 
$.ajax({
type:"post",
async:false,
url:"/charts/info_status",
datatype:"String",
timeout:200,
success:function(data,status){
alert(data);
if(data!=null){
param=data;
param= param.replace("\"","").replace("\"","");
alert(data);
}
else{
param="[[ '正在拉升', 20],['中线持有',23.0],['回调介入', 26.8],['获利出局',32]]";}}
});
    return param;

}  

async赋值false。设置为同步传值