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数据库：mysql数据库
dos窗口向mysql数据库中插入数据时，如果包含中文的话那么是无法插入的。原因是默认character_set_client编码是ut8,而dos窗口默认编码是gbk.比如你敲出来两个中文字符“中国”向name字段赋值，结果报错： Incorrect string value: '/xD6/xD0/xB9/xFA' for column 'name'。/xD6/xD0/xB9/xFA就是“中国”对应gbk的十六进制编码。而utf-8使用三个字节表示一个汉字的，'中国"二字应该有六个字节才对，显然会被查出有问题。所以dos窗口表中插入包含中文字符的记录，记得：set character_set_client=gbk; 这句话相当于通知数据库”输入字符采用的编码是“gbk,这样就能实现自动转换，顺利插入了。
在dos界面显示表中记录也可能出现中文乱码的问题，记得set character_set_results=gbk;这样相当于通知数据库显示界面采用gbk编码，这样就能正常显示中文字符了。
可以输入命令：show variables like "chara%";来显示当前数据库系统各方面采用的编码。
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