巧用hosts,使得脚本可以如鱼得水似的切换环境

1、C:WindowsSystem32driversetc在这个目录下有个hosts文件，

文件内容如下：使用线上和线下不同的地址来指向同一个域名，便可以共用同一套脚本，而执行在不同的环境中。

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#    127.0.0.1       localhost
#    ::1             localhost
  114.55.188.77    pro.labbigdata.com
#  192.168.1.38    pro.labbigdata.com