let str = "您有一笔测量订单已分配↵订单编号:521519↵客户名称:↵详细地址:北京市北京市东城区↵师傅:(限1)↵师傅电话:↵";
str = str.replace(/↵/g,"\n");
<text class="messages">换行</text>\n换行\t空格