小编Pas*_*mer的帖子

我有一个课程如下:

public class Test
{
    public int Id {get;set;}
    public string Name { get; set; }
    public string CreatedDate {get;set;}
    public string DueDate { get; set; } 
    public string ReferenceNo { get; set; }       
    public string Parent { get; set; }
}

我有一个Test对象列表

List<Test>testobjs=new List();

现在我想以下列格式将其转换为csv:

"1,约翰格里沙姆,9/5/2014,9/5/2014,1356,0\N 2,斯蒂芬金,9/3/2014,9/9/2014,1367,0\N3,造雨,4/9/2014,18/9/2014,1" ;

我搜索了"将列表转换为csv c#",我得到的解决方案如下:

string.Join(",", list.Select(n => n.ToString()).ToArray())

但是这不会根据需要放置\n,即每个对象

除了字符串构建之外还有其他最快的方法吗？请帮忙...

I have an Immutable OrderedMap as follows:

pairs: Immutable.OrderedMap({"Key1":"Value1","Key2":"Value2","Key4":"Value4"})

I need to insert ["Key3":"Value3"] after ["Key2":"Value2"] dynamically.

I thought

pairs.MergeIn(['Key2'],OrderedMap({"Key3":"Value3"}))  

will serve the purpose but not working.

I tried

const newPairs=Immutable.OrderedMap();
newPairs.forEach(function(value,key,map)){
   if(key=="Key4")
     newPairs.set('Key3','Value3')
   newPairs.set(key,value')
});     

But I know it's a stupid code which won't work as newPairs is immutable and newPairs will be still empty. So is there any Immutable way of OrderedMap.addBefore(Key,key,value)?