Win10 PLSQL 登录后，提示数据库字符集（AL32UTF8）和客户端字符集（ZHS16GBK）不一致

plsql 登录后提示：

Database character set (AL32UTF8) and Client character set (ZHS16GBK) are different.
Character set conversion may cause unexpected results.

Note: you can set the client character set through the NLS_LANG environment variable or the NLS_LANG registry key in
HKEY_LOCAL_MACHINESOFTWAREOracleKEY_OraClient11g_home2.

解决办法：修改注册表

打开注册表,‘开始’-‘运行’ 输入‘regedit’-确定。

找到提示中给出的路径，

 (在win10 64位系统中，按照提示并不能找到路径，网上百度了下,64位系统和32位系统不一样，最终的答案是)

HKEY_LOCAL_MACHINESOFTWAREWow6432NodeOracleKEY_OraClient11g_home2.

找到 NLS_LANG 键，他的值原来是：SIMPLIFIED CHINESE_CHINA.ZHS16GBK

修改为：SIMPLIFIED CHINESE_CHINA.AL32UTF8

重新打开plsql ，登录，好了。