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C#中如何分割字符串 ,例如将某个带着路径的文件名...

要是只想分析目录的话可用Path类: string fullFileName = @"C:\mydir\myfile.ext"; string directoryName = Path.GetDirectoryName(fullFileName ); string fileName = Path.GetFileName(fullFileName); string fileNameWithoutExt= Path.GetFi...

(1)如果字符串格式为: String str="abc#def#hijkl#mn"; string[] s = str.Split(new char[] { '#' }); 结果就是: s[0]="abc"; s[1]="def"; s[2]="hijkl"; s[3]="mn"; (2)如果是单纯的字符串截取就简单了,比如: String str="abcdefg"; St...

用正则或者先用lastindexof找到最后下划线再用substring 截取,比如正则的 string str="test_abc_def_009_20342";Match m = Regex.Match(str, "(.+)_(.+)");if(m.Success){ //m.Groups[1].Value即为test_abc_def_009 //m.Groups[2].Value即为20342}

string str="1,2,3,4,5,6" str=str.Replace(",4",""); string[] arr =str.Split(','); str= string.join(",",arr);

简单!声明String的一个数组:String[] str;然后str=需要切割的字符串.Split(' 空格')这就是按空格切割,你也可以自己自定义。明白?

好做啊这个,方法也很多,代码等会给你贴上来。 namespace Baduzhidao{ class Program { static void Main(string[] args) { int index = 0;//匹配计数器 string strKey = "zhongguo";//匹配字符串 DirectoryInfo myDir = new DirectoryInfo(@"D...

递归搜索 List strs = new List(); private void Form1_Load(object sender, EventArgs e) { DirectoryInfo dir = new DirectoryInfo("文件夹名称"); bianli(dir, "关键字"); MessageBox.Show("总共有" + strs.Count + "个文件有关键字"); } ///...

public void WriteToFile(string fileFullPath,string content){ using (StreamWriter writer = new StreamWriter(fileFullPath)) { writer.WriteLine(content); }}

用递归 private void getDirectories(string path) { string[] fileNames = Directory.GetFiles(path); string[] directories = Directory.GetDirectories(path); foreach (string file in fileNames) { Console.WriteLine("Filename:{0}",file)...

据我所知,在C#里string型变量可以向数组一样的操作,例如: string temp; temp[0],temp[1]........ temp.length就是temp里字符的个数。

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