1.安装 a. 查看源 gem sources -l b. 设置源: sudo gem sources -a http://ruby.taobao.org c. 删除源:sudo gem sources -r https://rubygems.org/ d. 安装cocoaPads: sudo gem install cocoapods e. 设置:pod setup 2. cocoaPods使用 a. 搜索 :pod searchSDWebImage b. 切换到项目的根目录echo"pod'…
https://blog.csdn.net/wpz0713/article/details/51499654 原因分析: 可能在PLSQL Developer执行update时没有commit,oracle将该条记录锁住了. 解决方案: --查询锁定记录 SELECT s.sid,s.serial# FROM v$locked_object lo,dba_objects ao, v$session s WHERE ao.object_id = lo.object_id AND lo.sessio…