红宝石 |符号交换函数

Symbol#swapcase() ：swapcase()是一个符号类方法，它反转符号对象的书写大小写。

Syntax: Symbol.swapcase()

Parameter: Symbol values

Return: inverts the writing case of the symbol object.
upper to lower and lower to upper

示例 #1：

# Ruby code for Symbol.swapcase() method
  
# declaring Symbol 
a = :aBcDeF
  
# declaring Symbol
b = :"\u{e4 f6 fc}"
  
# declaring Symbol
c = :ABCDEF
  
# Symbol 
puts "Symbol a : #{a}\n\n"
puts "Symbol b : #{b}\n\n"
puts "Symbol c : #{c}\n\n\n\n"
  
  
# swapcase form 
puts "Symbol a swapcase form : #{a.swapcase}\n\n"
puts "Symbol b swapcase form : #{b.swapcase}\n\n"
puts "Symbol c swapcase form : #{c.swapcase}\n\n"

输出 ：

Symbol a : aBcDeF

Symbol b : äöü

Symbol c : ABCDEF



Symbol a swapcase form : AbCdEf

Symbol b swapcase form : äöü

Symbol c swapcase form : abcdef

示例 #2：

# Ruby code for Symbol.swapcase() method
  
# declaring Symbol 
a = :geeks
  
# declaring Symbol
b = :"\u{e5 f6 f3}"
  
# declaring Symbol
c = :GEEKS
  
# Symbol 
puts "Symbol a : #{a}\n\n"
puts "Symbol b : #{b}\n\n"
puts "Symbol c : #{c}\n\n\n\n"
  
  
# swapcase form 
puts "Symbol a swapcase form : #{a.swapcase}\n\n"
puts "Symbol b swapcase form : #{b.swapcase}\n\n"
puts "Symbol c swapcase form : #{c.swapcase}\n\n"

输出 ：

Symbol a : geeks

Symbol b : åöó

Symbol c : GEEKS



Symbol a swapcase form : GEEKS

Symbol b swapcase form : åöó

Symbol c swapcase form : geeks