如何从字符串中取出第一个字符

Question

使用VB.Net和SQL Server 2005

Dim S as string
s = "Rajan"
s = "Sajan"

我想从字符串中取出第一个字符

预期产出

R
S

需要VB.Net代码帮助

Answer 1

试试这个..

Dim S As String
S = "RAJAN"
Dim answer As Char
answer = S.Substring(0, 1)

Answer 2

试试这个:

Dim s = "RAJAN"
Dim firstChar = s(0)

你甚至可以这样做:

Dim firstChar = "RAJAN"(0)

Answer 3

使用字符:

Dim firstChar As char;
firstChar = s.Chars(0);

http://vb.net-informations.com/string/vb.net_String_Chars.htm