public bool IsExist(string name) //方式1
{
bool state = false;
foreach (Book b in booklist)
{
if (b.Name == name)
state = true;
else
state = false;
}
return state;
}
public bool IsExist(string name) //方式2
{
foreach (Book b in booklist)
{
if (b.Name == name)
return true;
else
return false;
}
}
foreach (Book b in booklist)
{
if (b.Name == name)
{
return true;
}
return false;
}
foreach (Book b in booklist)
{
if (b.Name == name)
{
return true;
}
}
return false;
