为什么手机端评论会提示 SQL语句执行错误: INSERT INTO blog_comment (date,poster,gid,comment,mail,url,hide,ip,pid,useragent) VALUES ('1469924292','醉酒','16','手机端评论测试','','','n','14.134.133.53','0','Mozilla/5.0 (Linux; Android 4.4.2; HUAWEI MT2-L02 Build/HuaweiMT2-L02) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/37.0.0.0 Mobile MQQBrowser/6.2 TBS/036555 Safari/537.36 V1_AND_SQ_6.5.0_390_YYB_D QQ/6.5.0.2835 NetType/WIFI WebP/0.3.0 Pixel/720') Data too long for column 'useragent' at row 1 «点击返回 这个要怎么解决？