#!/usr/bin/env ruby
require 'rubygems'
require 'md5'
require 'pg'

puts "请输入您的Email"
email = gets
puts "请输入您的新密码"
password = gets
password = Digest::MD5.hexdigest("--#{password.chop}--")
puts "请输入您的数据库地址"
address = gets
p address.chop
puts "请输入您的数据库名"
database = gets

		@postgres = PGconn.connect address.chop,5432,'','',database.chop,'数据库用户名','数据库密码'
str =  "update users set password = '" + password + "' where email = '" + email.chop + "';"
		@postgres.exec str
puts "您的密码已经修改成功"