c# - 如何在正则表达式中添加我的文本框以动态删除单词？

Question

我有txtSrcUserID 文本框。我想从下面的句子中删除用户输入的单词。

此代码帮助我删除“USER1”。从下面关于richtexbox1的句子。但根据用户输入，单词会改变，所以我需要动态删除单词......

  Regex reg = new Regex("(ALTER TABLE .+ REFERENCES\\s+)\"USER1\"[.](.+)");
  richTextBox1.Text = reg.Replace(richTextBox1.Text, "$1$2");

我的句子

ALTER TABLE "GRADE" ADD CONSTRAINT "GR_ENR_FK" FOREIGN KEY ("STUDENT_ID","SECTION_ID") REFERENCES "USER1"."ENROLLMENT"("STUDENT_ID","SECTION_ID") ENABLE;

ALTER TABLE "GRADE" ADD CONSTRAINT "GR_GRTW_FK" FOREIGN KEY ("SECTION_ID","GRADE_TYPE_CODE") REFERENCES "USER1"."GRADE_TYPE_WEIGHT"("SECTION_ID","GRADE_TYPE_CODE") ENABLE;

使用我的代码语句后将修改如下：

  ALTER TABLE "GRADE" ADD CONSTRAINT "GR_ENR_FK" FOREIGN KEY ("STUDENT_ID","SECTION_ID") REFERENCES "ENROLLMENT"("STUDENT_ID","SECTION_ID") ENABLE;

    ALTER TABLE "GRADE" ADD CONSTRAINT "GR_GRTW_FK" FOREIGN KEY ("SECTION_ID","GRADE_TYPE_CODE") REFERENCES "GRADE_TYPE_WEIGHT"("SECTION_ID","GRADE_TYPE_CODE") ENABLE;

*我想要这样的东西，那么我在哪里可以在下面的代码中添加 txtSrcUserID *

 Regex reg = new Regex("(ALTER TABLE .+ REFERENCES\\s+)\"txtSrcUserID\"[.](.+)");
 richTextBox1.Text = reg.Replace(richTextBox1.Text, "$1$2");

Answer 1

你的意思是这样的：

Regex reg = new Regex(string.Format("(ALTER TABLE .+ REFERENCES\\s+)\"{0}\"[.](.+)", txtSrcUserID.Text));