How do you put the text of a different format into the word of annex C#?

[morde]

I cannot enter the text of a different format into the word of annex C#. That's the code I have:

Word._Application word_app = new Word.Application();
word_app.Visible = true;
object missing = Type.Missing;
Word._Document word_doc = word_app.Documents.Add(ref missing, ref missing, ref missing, ref missing);
Word.Paragraph para = word_doc.Paragraphs.Add(ref missing);
para.Range.Text = "Chrysanthemum Curve";

The result is the opening of the word, and the entry into the first line of Chrysanthemum Curve. The problem is, I can't figure out how to add the next line.

Appendix 2:

Word.Paragraph para2=word_doc.Paragraphs.Add(ref missing);
para2.Range.Text = "Text 2";

The communication does not directly alter the current text and does not add a new block.

word_doc.Paragraphs[0].Range.Text = "Text 1";
word_doc.Paragraphs[1].Range.Text = "Text 2";

[Anderson]

In fact, it is:

A document is originally being created.

Word._Application word_app = new Word.Application();
word_app.Visible = true;
object missing = Type.Missing;
Word._Document word_doc = word_app.Documents.Add(ref missing, ref missing, ref missing, ref missing);

We're adding a text block.

Word.Paragraph para = word_doc.Paragraphs.Add(ref missing);

No matter how many times we've done

para = word_doc.Paragraphs.Add(ref missing);

The number of blocks will increase and para refer to the first block.

3 blocks must be added 4 times

 word_doc.Paragraphs.Add(ref missing);
 word_doc.Paragraphs.Add(ref missing);
 word_doc.Paragraphs.Add(ref missing);
 word_doc.Paragraphs.Add(ref missing);

and then apply to everyone separately, the numbering as I understand begins with 1.

word_doc.Paragraphs[1].Range.Text = "Text 1";
word_doc.Paragraphs[2].Range.Text = "Text 2";
word_doc.Paragraphs[3].Range.Text = "Text 3";