mysqldump导出数据库报错1045

C:\Users\Administrator>mysqldump -h10.0.3.234 -uroot -pQaz123$%^ cps_message > C:\Users\Administrator\Desktop\cps_message.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.
mysqldump: Got error: 1045: Access denied for user 'root'@'10.253.4.8' (using password: YES) when trying to connect

经过查找资料，密码加双引号即可：

C:\Users\Administrator>mysqldump -h10.0.3.234 -uroot -p"Qaz123$%^" cps_message > C:\Users\Administrator\Desktop\cps_message.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.