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Ruby StringScanner pointer用法及代碼示例


StringScanner#pointer():pointer()是StringScanner類方法,它返回掃描指針的字節位置

用法:StringScanner.pointer()

參數:StringScanner值


返回:掃描指針的字節位置

示例1:

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

輸出:

String Scanner pointer form : 0

String Scanner pointer form : 21

示例2:

# Ruby code for StringScanner.pointer() method 
  
# loading StringScanner 
require 'strscan'
  
# declaring StringScanner  
c = StringScanner.new("hellogeeks") 
  
  
# pointer() method 
puts "String Scanner pointer form : #{c.pointer()}\n\n"
  
c.terminate() 
# pointer() method 
puts "String Scanner pointer form : #{c.pointer()}\n\n"

輸出:

String Scanner pointer form : 0

String Scanner pointer form : 10



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