相关疑难解决方法(0)

假设我有一个字符串:

string str = "1111222233334444"; 

如何将这个字符串分成几个大小的块？

例如,将其分解为4将返回字符串:

"1111"
"2222"
"3333"
"4444"

我使用下面的代码来分割字符串,但这需要很多时间.

using (StreamReader srSegmentData = new StreamReader(fileNamePath))
{
    string strSegmentData = "";
    string line = srSegmentData.ReadToEnd();
    int startPos = 0;

    ArrayList alSegments = new ArrayList();
    while (startPos < line.Length && (line.Length - startPos) >= segmentSize)
    {
        strSegmentData = strSegmentData + line.Substring(startPos, segmentSize) + Environment.NewLine;
        alSegments.Add(line.Substring(startPos, segmentSize) + Environment.NewLine);
        startPos = startPos + segmentSize;
    }
}

请建议我另一种方法将字符串拆分为固定大小的较小块