Ruby StringScanner matched?用法及代码示例

StringScanner＃matched？()：matched？()是一个StringScanner类方法，它检查上一次匹配是否成功。

用法：StringScanner.matched?()

参数：StringScanner值

返回：true-如果最后一次匹配成功，则返回false

范例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

范例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

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注：本文由纯净天空筛选整理自mayank5326大神的英文原创作品 Ruby | StringScanner matched? function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。