封装md5加密函数

public string EncryptPassword(string PasswordString,string PasswordFormat ) 
{ 
if (PasswordFormat="SHA1"){ 
EncryptPassword=FormsAuthortication.HashPasswordForStoringInConfigFile(PasswordString ,"SHA1"); 
} 
elseif (PasswordFormat="MD5") 
{ EncryptPassword=FormsAuthortication.HashPasswordForStoringInConfigFile(PasswordString ,"MD5"); 
} 
else 
{ 
EncryptPassword=""; 
}
}