简单参数问题
public DataSet chaxun(string name)
{
try
{
strCon.Open();
string strSql = "SELECT zh FROM Userinfo where zh='name'";

DataSet ds = new DataSet();
SqlDataAdapter s = new SqlDataAdapter(strSql, strCon);
s.Fill(ds);
return ds;
}
}
如何把 查询语句（string strSql = "SELECT zh FROM Userinfo where zh='name'"）的name变成（public DataSet chaxun(string name)）参数name SQL 查询语句
[解决办法]

 string strSql = string.format("SELECT zh FROM Userinfo where zh='{0}'",name);

[解决办法]
string strSql = "SELECT zh FROM Userinfo where zh='"+name+"'';

字符串的一些常用操作你需要学习一下