Splats and tuples Splatting a tuple Double splats and named tuples Double splatting a named tuple Splats and tuples A method can receive a variable number of arguments by usi...
Splats and tuples Splatting a tuple Double splats and named tuples Double splatting a named tuple Splats and tuples A method can receive a variable number of arguments by usi...
Splats and tuples Splatting a tuple Double splats and named tuples Double splatting a named tuple Splats and tuples A method can receive a variable number of arguments by usi...
if var.is_a?(…) if var.is_a?(…) If an if ‘s condition is an is_a? test, the type of a variable is guaranteed to be restricted by that type in the then branch. if a . is_a ?(...
if var.is_a?(…) if var.is_a?(…) If an if ‘s condition is an is_a? test, the type of a variable is guaranteed to be restricted by that type in the then branch. if a . is_a ?(...
if var.is_a?(…) if var.is_a?(…) If an if ‘s condition is an is_a? test, the type of a variable is guaranteed to be restricted by that type in the then branch. if a . is_a ?(...
IF THEN 声明 IF THEN ELSE 声明 IF THEN ELSIF 声明 简单 CASE 声明 检索型 CASE 声明 条件控制语句根据不同的条件去执行或者忽略一组程序代码,它可以通过 IF 或者 CASE 来实现。其中,IF 语句还包括以下几种形态: IF THEN IF THEN ELSE IF THEN ELSIF...