Ruby StringScanner matched?函数

StringScanner#matched?() : matched?()是StringScanner类的一个方法，用于检查最后一次匹配是否成功。

语法。StringScanner.match?()

参数。StringScanner的值

返回：true – 如果最后一次匹配成功，否则返回false。

例子 #1 :

# Ruby code for StringScanner.matched?() method
  
# loading StringScanner
require 'strscan'
  
# declaring StringScanner 
c = StringScanner.new("Mon Sep 12 2018 14:39")
  
c.match?(/\s+/)
# matched?() method
puts "String Scanner matched? form : #{c.matched?()}\n\n"
  
c.match?(/\w+/)
# matched?() method
puts "String Scanner matched? form : #{c.matched?()}\n\n"

输出:

String Scanner matched? form : false

String Scanner matched? form : true

例子 #2 :

# Ruby code for StringScanner.matched?() method
  
# loading StringScanner
require 'strscan'
  
# declaring StringScanner 
c = StringScanner.new("hellogeeks")
  
c.match?(/\s+/)
# matched?() method
puts "String Scanner matched? form : #{c.matched?()}\n\n"
  
c.match?(/\w+/)
# matched?() method
puts "String Scanner matched? form : #{c.matched?()}\n\n"

输出:

String Scanner matched? form : false

String Scanner matched? form : true