Question

c# 从数据库读取的字段在20个字以后用3个点省略下文，怎么实现?

Answer 1

string s;
s = Console.ReadLine();
//Console.WriteLine(s);
if (s.Length > 20)
{
Console.WriteLine(s.Substring(0, 20) + "...");
}
else
{
Console.WriteLine(s);
}