方法级联调用

方法级联调用（Method cascading）是面向对象编程语言中对同一个对象调用其多个方法时的一种语法糖。特别适用于实现流畅接口。^[1]

a..b()
 ..c();

等价于单独调用：

a.b();
a.c();

Visual Basic允许对同一个对象调用任意多次的方法或属性:^[2]

With ExpressionThatReturnsAnObject
  .SomeFunction(42)
  .Property = value
End With

With..End With块在Visual Basic中可以嵌套:

With ExpressionThatReturnsAnObject
  .SomeFunction(42)
  .Property = value
  With .SubObject
    .SubProperty = otherValue
    .AnotherMethod(42)
  End With
End With

参见

参考文献

^ Beck, Kent. Smalltalk Best Practice Patterns. Prentice Hall. 1997. ISBN 978-0134769042.
^ With statement in MSDN. [2022-10-13]. （原始内容存档于2022-09-06）.

[1] Beck, Kent. Smalltalk Best Practice Patterns. Prentice Hall. 1997. ISBN 978-0134769042.

[2] With statement in MSDN. [2022-10-13]. （原始内容存档于2022-09-06）.

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