https://keijiban.umayadia.com/ThreadDetail.aspx?ThreadId=30775#CommentId85365
投稿者 魔界の仮面弁士  (社会人) 投稿日時 2022/7/22 16:06:16
Replace メソッドでは駄目ですか?
https://docs.microsoft.com/ja-jp/dotnet/api/system.string.replace?view=netframework-4.8#system-string-replace(system-string-system-string) 
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