摘要: //判断字段是否存在 -(void)addColumnToTable:(NSString *)tableName ColumnName:(NSString *)column{ if ((tableName == nil) || (column == nil)) { return; } ... 阅读全文
posted @ 2015-02-09 11:20 bit by bit 阅读(728) 评论(0) 推荐(0) 编辑