1117: Ready to declare 时间限制: 1 Sec 内存限制: 128 MB 提交: 358 解决: 41 [ 提交][ 状态][ 讨论版] 题目描述 Finally, you find the most good-looking girl... You are going to write a letter to her. But you a
解决方法 两个 DECLARE之间加上/ 注意:/单独占用一行,且前面要顶格,无空格。 --创建容器临时表 DECLARE exist number; begin select count(1) into exist from user_tables t where t.table_name = 'TEMP_YRYD_RQ'; if exist = 0 then execute i
static用法报错解决:cannot declare member function to have static linkage [-fpermissive] 1.test.h 定义class Test{static Test* GetInstance(); //.h文件中的Test类,加static属于Test类区域的范围static CameraHardwareInterface*
1、Q_DECLARE_METATYPE 进行数据绑定时候,出现这个bug错。 error: C2338: Type is not registered, please use the Q_DECLARE_METATYPE macro to make it known to Qt。 原因:使用了QVariant::fromValue(user),QVariant对象使用前需进行类型声明。