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[英]How to read specific column in excel using c# and get the number of occurrences of different words in that column
[英]How to display all occurrences of specific words in a file C#
我正在尝试使用OpenFileDialog
从文件中读取所有文本/行(无论哪种文件都无关紧要),并且只提取 C# 关键字(我已经将关键字输入到string
中)-但是,我可以' t 似乎弄清楚如何提取所有事件。 我不想计算它们,比如count++
,我想在RichTextBox
中显示出现次数
这是仅第一次出现的代码:
string keywords = @"\b(default|delegate|do|else|event|explicit|extern|false|finally|fixed|for|foreach|goto|if|implicit|in|interface|internal|is|lock|namespace|new|null|object|operator|out|override|params|private|protected|public|readonly|ref|return|sealed|sizeof|stackalloc|switch|this|throw|true|try|typeof|unchecked|unsafe|using|virtual|volatile|while)\b";
MatchCollection matches = Regex.Matches(File.ReadAllText(ofdd.FileName), keywords);
foreach (Match match in matches)
{
richTextBox1.Text = (match.Groups[1].Value);
}
-我知道我忘记了abstract
等关键字。
该代码仅执行部分工作:(我需要它来显示所有出现的keywords
string
知道如何显示所有事件吗?
我终于从不同网站上的许多不同答案中创建了这段代码,并且效果很好:
string[] keys = { "abstract", "as", "base", "break", "case", "catch", "checked", "continue", "default", "delegate", "do", "else", "event", "explicit", "extern", "false", "finally", "fixed", "for", "foreach", "goto", "if", "implicit", "in", "interface", "internal", "is", "lock", "namespace", "new", "null", "object", "operator", "out", "override", "params", "private", "protected", "public", "readonly", "ref", "return", "sealed", "sizeof", "stackalloc", "switch", "this", "throw", "true", "try", "typeof", "unchecked", "unsafe", "using", "virtual", "volatile", "while" };
char[] separators = new char[] { ',', ' ', '\r', '\n', '.' };
String[] strings = data.Split(separators);
StringBuilder stringBuilder = new StringBuilder();
foreach (var item in strings)
{
if (keys.Contains(item))
{
stringBuilder.Append(item + " ");
count = item.Length;
}
}
string theOutputDesire = stringBuilder.ToString();
data
将是输入,例如,如果文件或字符串包含public
、 people
和empty
,则只会显示public
。
count
是文件中出现的次数,例如,如果文件包含public
、 public
和people
,则count
将为2 。
keys
包含我们正在寻找的文本。 它可以根据您的需要进行修改。
我希望这可以帮助其他寻找答案的人!
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