发生这种错误,是由于MySQL 8默认使用了新的密码验证插件:caching_sha2_password,而之前的PHP版本中所带的mysqlnd无法支持这种验证。有几种方法:1.升级PHP版本,PHP7.xx有支持MySQL8.0的插件认证 2.修改配置文件my.cnf 使数据库启用兼容的加密方式 我们这里讲第二种方法 use mysql; ALTER USER ‘root’@‘localho
http://acm.hdu.edu.cn/showproblem.php?pid=2054 A == B ? Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 63175 Accepted Submission(s)
Give you two numbers A and B, if A is equal to B, you should print “YES”, or print “NO”. Input each test case contains two numbers A and B. Output for each case, if A is equal to B, you should print “