红宝石 | StringScanner 匹配？函数

StringScanner#matched?() ：matched?()是一个 StringScanner 类方法，用于检查最后一次匹配是否成功。

Syntax: StringScanner.matched?()

Parameter: StringScanner values

Return: true – if the last match was successful otherwise return false

示例 #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

示例 #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