Ruby 符号 =~函数
Symbol#=~() : =~() 是一个Symbol类的方法,它用符号来=~模式。
语法。符号.=~()
参数。符号值
返回:位置 – 如果模式=~了符号,则返回nil。
例子 #1 :
# Ruby code for Symbol.=~() 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"
# =~ form
puts "Symbol a =~ form : #{a.=~(/D/)}\n\n"
puts "Symbol b =~ form : #{b.=~(/o/)}\n\n"
puts "Symbol c =~ form : #{c.=~(/C/)}\n\n"
输出:
Symbol a : aBcDeF
Symbol b : äöü
Symbol c : ABCDEF
Symbol a =~ form : 3
Symbol b =~ form :
Symbol c =~ form : 2
例子 #2 :
# Ruby code for Symbol.=~() 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"
# =~ form
puts "Symbol a =~ form : #{a.=~(/g/)}\n\n"
puts "Symbol b =~ form : #{b.=~(/a/)}\n\n"
puts "Symbol c =~ form : #{c.=~(/EE/)}\n\n"
输出:
Symbol a : geeks
Symbol b : åöó
Symbol c : GEEKS
Symbol a =~ form : 0
Symbol b =~ form :
Symbol c =~ form : 1