hosts文件为空怎么办？

用户HOSTS文件是在“c:\windows\system32\drivers\etc

打开记事本，以管理员身份打开hosts文件

打开后hosts文件是空的，不用担心，原本hosts文件是空的，都是后期人为加上去的

先复制下面这段后放入文件然后保存： 

# 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.

#

这样就好了~