Ruby StringScanner match?用法及代碼示例

StringScanner＃match？()：match？()是一個StringScanner類方法，它檢查給定的模式是否與當前掃描指針匹配。

用法：StringScanner.match?()

參數：StringScanner值

返回：posiiton-如果模式匹配，否則返回false

範例1：

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

輸出：

String Scanner match? form:3

String Scanner match? form:

範例2：

# Ruby code for StringScanner.match?() method 
  
# loading StringScanner 
require 'strscan'
  
# declaring StringScanner  
c = StringScanner.new("hellogeeks") 
  
# match?() method 
puts "String Scanner match? form:#{c.match?(/\w+/)}\n\n"
  
# match?() method 
puts "String Scanner match? form:#{c.match?(/\s+/)}\n\n"

輸出：

String Scanner match? form:10

String Scanner match? form:

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