Ruby StringScanner matched?用法及代碼示例

StringScanner＃matched？()：matched？()是一個StringScanner類方法，它檢查上一次匹配是否成功。

用法：StringScanner.matched?()

參數：StringScanner值

返回：true-如果最後一次匹配成功，則返回false

範例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"

輸出：

String Scanner matched? form:false

String Scanner matched? form:true

範例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"

輸出：

String Scanner matched? form:false

String Scanner matched? form:true

相關用法

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