visual c ++中的mysql连接 [英] mysql connection in visual c++
问题描述
string^ constring=L"datasource=localhost;port:80;username=root;password='';";
MySqlConnection^ conDatabase=gcnew MySqlConnection(constring);
MySqlCommand^ cmd=gcnew MySqlCommand("select * from eventor.user",conDatabase);
MySqlDataReader^ myreader;
try
{
conDatabase->Open();
myreader=cmd->ExecuteReader();
}
catch(Exception^ ex)
{
MessageBox::Show(ex->Message);
}
在串口和字符串中存在问题
1> c:\\ \\ users\sony\documents\visual studio 2010 \projects\student database\student database\Form1.h(134):error C2065:'string':未声明的标识符
1> c:\ users \ sony \documents \ visual studio 2010 \projects \student database \student database \Form1.h(134):error C2065:'constring':undeclared identifier
1> c:\ usersrs \ sony \documents\visual studio 2010 \projects \student database \student database\Form1.h(135):error C2065:'constring':未声明的标识符
帮助我
there is a problem in th constring and string
1>c:\users\sony\documents\visual studio 2010\projects\student database\student database\Form1.h(134): error C2065: 'string' : undeclared identifier
1>c:\users\sony\documents\visual studio 2010\projects\student database\student database\Form1.h(134): error C2065: 'constring' : undeclared identifier
1>c:\users\sony\documents\visual studio 2010\projects\student database\student database\Form1.h(135): error C2065: 'constring' : undeclared identifier
help me
推荐答案
应该string
不能使用大写字母S -字符串
[ ^ ]。
Shouldstring
not be with a capital S -String
[^].
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