Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
418 views
in Technique[技术] by (71.8m points)

c# - How do I add a comma after the fourth character in a sentence?

I know nothing of C# so I'm hoping somebody here can help. So my question is how would I add a "," after the fourth character in a string. Something like:

Hell,o?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

You can use .Insert():

string test = "Hello";
test = test.Insert(4, ",");

You should check if the string is long enough though like so:

if (test.Length > 4) {
     test = test.Insert(4, ",");
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...