Mongodb-Robo 3T使用js函数遍历集合+分割数组+拼接字段+修改对象

db.getCollection("t_ythgk_yjxxfkpz").find({"fkmc": {"$regex":","}}).
forEach(
function(item) {
var tmp = [];
var pjtmp = "";
tmp = item.fkmc.split(",");
for(var k in tmp){
var fhmc = db.getCollection('t_ythgk_yjxxfkpz').findOne({"fkzd":tmp[k]},{"fkzd":1});

if(fhmc!=null){
print("====="+fhmc.fkzd);
pjtmp = pjtmp + fhmc.fkzd + ",";
}
}
print("打印获得的值："+pjtmp);
var zddmm = pjtmp;
item.zddm = pjtmp.substr(0,pjtmp.length-1);
print("打印获得的值========："+item.zddm);
db.getCollection('t_ythgk_yjxxfkpz').save(item);
//print(item.zddm);
}
);

菜鸟程序媛，若有需修正之处，望指正~

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