1.按照FMDB文档格式进行SQLite的数据库建立，以及建表、插入、关闭的操作。但是真机测试时似乎是权限问题，不让在手机的documentation目录下进行读写操作。

2.源代码如下：

 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask, YES);
    NSString *documentDirectory = [paths objectAtIndex:0];

    NSString *infraredDataBasePath = [documentDirectory stringByAppendingPathComponent:@"ifraredDataBase.sqlite"];
    //建立ifraredDataBase
    FMDatabase *ifraredDataBase = [FMDatabase databaseWithPath:infraredDataBasePath];

    BOOL res1111 = [ifraredDataBase open];
    if (res1111 == YES)
    {
        NSLog(@"ifraredDataBase 打开成功!");

        //建表
        [ifraredDataBase executeUpdate:@"CREATE TABLE IF NOT EXISTS ifraredTable (temp REAL, date TEXT)"];
        //插入数据
        NSString *insertTempAndDate = [NSString stringWithFormat:
                                       @"INSERT INTO ifraredTable (temp, date) VALUES ('%@', '%@')",
                                       tempForDB, timeForDB];
        BOOL res = [ifraredDataBase executeUpdate:insertTempAndDate];

        if (res == YES)
        {
            NSLog(@"SQLite插入数据成功!");
        }
        else
        {
            NSLog(@"SQLite插入数据失败!");
        }
    }
    else
    {
        NSLog(@"ifraredDataBase 打开失败!");
    }
    [ifraredDataBase close];

3.Xcode反馈的错误信息如下：

 2015-09-07 21:36:24.833 iWorkaides[1242:156531] error opening!: 14
2015-09-07 21:36:24.833 iWorkaides[1242:156531] ifraredDataBase 打开失败!
Printing description of infraredDataBasePath:
/var/mobile/Containers/Data/Application/C13AB1F7-B11C-4E4F-887B-A8CD76E16599/Library/Documentation/ifraredDataBase.sqlite
Printing description of infraredDataBasePath:
/var/mobile/Containers/Data/Application/C13AB1F7-B11C-4E4F-887B-A8CD76E16599/Library/Documentation/ifraredDataBase.sqlite
Printing description of ifraredDataBase:
<FMDatabase: 0x170669dc0>

4.找了好久文档仍旧无法解决，着急，希望能有人能帮帮我。 :)