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#!/usr/bin/ruby # -*- coding: UTF-8 -*- phone = "138-3453-1111 #这是一个电话号码" # 删除 Ruby 的注释 phone = phone.sub!(/#.*$/, ") puts "电话号码 : #{phone}" # 移除数字以外的其他字符 phone = phone.gsub!(/D/, ") puts "电话号码 : #{phone}"