我怎樣才能創建關於這種情況的正則表達式

Question

我想通過正則表達式來做到這一點：示例： 父親去看望他的祖父和今天他的父親 。

如何通過正則表達式選擇粗體兩個父親？ 非常感謝。

Answer 1

我不確定為什么你需要正則表達式，因為你可以通過這樣做“選擇”你想要的字符串：

String myStr = "father";

或者，如果需要替換字符串中的子字符串，則可以執行以下操作：

String myStr = "father goes visit his grandfather and and his father today."
myStr = myStr.Replace(" father ", " someOtherString ");

但是，如果你真的想使用RegEx，你可以通過以下方式獲得MatchCollection ：

String myStr = "father goes visit his grandfather and and his father today."
Regex.Mathces(myStr, "\bfather\b");

它不是一個非常有趣的正則表達式，因為它只是一個明確的字符串文字。

Answer 2

嘗試這個

var matchs=Regex.matches("father goes visit his grandfather and and his father today.",@"\bfather\b");

Answer 3

var matchCollection = Regex.Matches("father goes visit his grandfather and and his father today.", "\bfather\b");

foreach (Match m in matchCollection)
{
     // Process your code for each match
}