如何设置结果值？

Question

function MyFunc: Boolean;
begin
    if eval then
    Result := True
    else
        Result := False;

    /* Note it's a fancy example, I know that in this case I can do: Result := Eval */
end;

要么

function MyFunc: Boolean;
begin
    Result := False;

    if eval then
        Result := True;

/* good by else statement */

end;

Answer 1

这实际上取决于方法的复杂性,你应该总是以可读性为目标,这些例子对我来说都很好

function MyFunc: Boolean;
begin
   Result := False;
   if (Something or SomethingElse) and Whatever then
     Result := True;
end;


function MyFunc: Boolean;
begin
  Result := (Something or SomethingElse) and Whatever;
end;


function MyFunc: Boolean;
begin
   Exit((Something or SomethingElse) and Whatever);
end;

function MyFunc: Boolean;
begin
  if (Something or SomethingElse) and Whatever then
     Result := True
  else
     Result := False;
end;

我个人一样,喜欢避免使用其他语句并尽量少写代码,所以我会选择示例2,但是示例1也很好,选项3和4的可读性不是很高.

我想如果你把这4个例子给初学者,第一个是最容易理解的.