解释代码

Question

嗨，谁能解释这些代码行，我需要了解它是如何工作的，以便继续我正在做的事情

if (e.Error == null){
    Stream responseStream = e.Result;
    StreamReader responseReader = new StreamReader(responseStream);
    string response = responseReader.ReadToEnd();

    string[] split1 = Regex.Split(response, "},{");
    List<string> pri1 = new List<string>(split1);
    pri1.RemoveAt(0);
    string last = pri1[pri1.Count() - 1];
    pri1.Remove(last);
}

Answer 1

// Check if there was no error
    if (e.Error == null)
    {

// Streams are a way to read/write information from/to somewhere
// without having to manage buffer allocation and such
        Stream responseStream = e.Result;

// StreamReader is a class making it easier to read from a stream
        StreamReader responseReader = new StreamReader(responseStream);

// read everything that was written to a stream and convert it to a string using
// the character encoding that was specified for the stream/reader.
        string response = responseReader.ReadToEnd();

// create an array of the string by using "},{" as delimiter
// string.Split would be more efficient and more straightforward.
        string[] split1 = Regex.Split(response, "},{");

// create a list of the array. Lists makes it easier to work with arrays
// since you do not have to move elements manually or take care of allocations
        List<string> pri1 = new List<string>(split1);
        pri1.RemoveAt(0);

// get the last item in the array. It would be more efficient to use .Length instead
// of Count()
        string last = pri1[pri1.Count() - 1];

// remove the last item
        pri1.Remove(last);
     }

如果唯一要做的就是删除第一个和最后一个元素，我会使用LinkedList而不是List。

Answer 2

它将响应流作为字符串读取，假设字符串由逗号分隔的序列"{...}“组成，例如：

{X}、{Y}、{Z}

然后在"}，{“上拆分字符串，给出一个

{X

是

Z}

然后从数组的第一个元素( {X => X)中删除第一个大括号，并从数组的最后一个元素( Z} => Z)中删除最后一个大括号。

Answer 3

据我所见，它正在从可能来自TCP的流中读取数据。它读取整个数据块，然后使用分隔符},{分隔这些块。

所以如果你有像abc},{dec这样的东西，它将被放入带有2个值的split1数组中，split1 =abc，split1 1=dec。

在那之后，它基本上删除了第一个和最后一个内容