等价于 with(from Pascal) 到 C/C++ [英] Equivalent of with(from Pascal) to C/C++

问题描述

Pascal 语言中的 with 在 C/C++ 语言中的等价物是什么?

What is the equivalent of with from Pascal language in C/C++ language?

with 语句是引用记录字段或对象的字段、属性和方法的简写.

A with statement is a shorthand for referencing the fields of a record or the fields, properties, and methods of an object.

示例

With (Object) do
begin
   Width:=200;
   Height:=300;
end;

等价于:

Object.Width=200;
Object.Height=200;

推荐答案

我不认为在 c/c++ 中有任何直接等效的语句.

I don't believe that there is any direct equivalent to that statement in c/c++.

如果您的目标是避免重复输入Object"，那么我想您可以使用引用将其映射到较短的名称，例如:

If your objective is to avoid repeatedly typing "Object", then I suppose you could use a reference to map it to a shorter name, such as:

  ClassName& o = Object;
  o.prop1 = "meep";
  o.prop2 = "moop";

但我个人只会在对象"是一个复杂表达式的情况下使用它.例如:

But I would personally only use this in cases where "Object" is a complex expression. E.g.:

  ClassName& o = something.getSomeOtherThing().getSomeThirdThing();
  o.prop1 = "meep";
  o.prop2 = "moop";

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