问题
How can I make indent only in the second row, to be space under the first word of paragraph.
as this:

回答1:
If you can read each line into an array, loop through that array, and if index = 1 then add "\t" to the beginning of the line then adding it to the output String. Let's see if I can write up an example.
Let's say you already read each line into String[] lines.
String[] lines = readFromTextFileLineByLine();
String output = "";
int index = 0;
foreach(String line in lines)
{
if(index==1)
line = "\t" + line;
output += line;
index++;
}
I hope this helps.
Now for each paragraph in a richtextbox would be a bit different. Maybe you can split the text up by "\n", instead of reading from a file line by line, then running this to change your output. You will, however, run into the issue of where a new line occurs and how large the text box is width wise.
来源:https://stackoverflow.com/questions/11953670/indent-only-in-second-line-in-paragraph-in-rich-text-box-c