插入中文是乱码，尝试了许多方法，比如我先把vim里设置为:setfileencoding=utf-8不起作用，后来想想也对，和vim没什么关系
然后就尝试c#代码，用Encoding.UTF8.GetString()方法，后来也不对。
我就郁闷了，忽然想起来莫不是mysql的设置问题？？？
于是，sudonano/etc/mysql/my.cnf
插入下面红色代码，default-character-set=utf8，成功,不乱码了~~~根本不用什么Encoding.....
#Thiswasformallyknownas[safe_mysqld].Bothversionsarecurrentlyparsed.
[mysqld_safe]
socket=/var/run/mysqld/mysqld.sock
nice=0
[mysqld]
#
#*BasicSettings
#
user=mysql
pid-file=/var/run/mysqld/mysqld.pid
socket=/var/run/mysqld/mysqld.sock
default-character-set=utf8
port=3306
basedir=/usr
datadir=/var/lib/mysql
tmpdir=/tmp
language=/usr/share/mysql/english
skip-external-locking