创建数据库

// 创建数据库
-(void)creatTable{
sqlite3 *sqlite = nil;
NSString *filepth = [NSHomeDirectory() stringByAppendingFormat:@"/Documents/data.sqlite"];

int result = sqlite3_open([filepth UTF8String], &sqlite);
if (result !=SQLITE_OK) {
NSLog(@"打开数据库失败");
return;
}
//创建SQL语句
NSString *sql =@"CREAT　TABLE IF NOT EXISTS User(username TEXT primary key,password TEXT ,email TEXT)";
char *error;
//编译数据
sqlite3_exec(sqlite, [sql UTF8String], NULL, NULL, &error);
if (result != SQLITE_OK) {
NSLog(@"执行数据库失败:%s",error);
return;
}
//关闭数据
sqlite3_close(sqlite);

}