红宝石 | StringScanner post_match函数

StringScanner#post_match() : post_match()是一个 StringScanner 类方法，它返回最后一次扫描的匹配后（在正则表达式意义上）

Syntax: StringScanner.post_match()

Parameter: StringScanner values

Return: post-match (in the regular expression sense) of the last scan

示例 #1：

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

输出 ：

String Scanner post_match form :  Sep 12 2018 14:39

String Scanner post_match form : Sep 12 2018 14:39

示例 #2：

# Ruby code for StringScanner.post_match() method
  
# loading StringScanner
require 'strscan'
  
# declaring StringScanner 
c = StringScanner.new("h ello geeks")
  
c.scan(/\w+/) 
# post_match() method
puts "String Scanner post_match form : #{c.post_match()}\n\n"
  
c.scan(/\s+/)
# post_match() method
puts "String Scanner post_match form : #{c.post_match()}\n\n"

输出 ：

String Scanner post_match form :  ello geeks

String Scanner post_match form : ello geeks