解决swift工程中引入fmdb模块并创建桥接文件后仍然报错问题：
原因是缺少libsqlite3.dylib
Build Phases 中添加libsqlite3.dylib

Undefined symbols for architecture x86_64:
  "_sqlite3_bind_blob", referenced from:
      -[FMDatabase bindObject:toColumn:inStatement:] in FMDatabase.o
  "_sqlite3_bind_double", referenced from:
      -[FMDatabase bindObject:toColumn:inStatement:] in FMDatabase.o
  "_sqlite3_bind_int", referenced from:
      -[FMDatabase bindObject:toColumn:inStatement:] in FMDatabase.o
  "_sqlite3_bind_int64", referenced from:
      -[FMDatabase bindObject:toColumn:inStatement:] in FMDatabase.o
  "_sqlite3_bind_null", referenced from:
      -[FMDatabase bindObject:toColumn:inStatement:] in FMDatabase.o
  "_sqlite3_bind_parameter_count", referenced from:
      -[FMDatabase executeQuery:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMDatabase executeUpdate:error:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
  "_sqlite3_bind_parameter_index", referenced from:
      -[FMDatabase executeQuery:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMDatabase executeUpdate:error:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
  "_sqlite3_bind_text", referenced from:
      -[FMDatabase bindObject:toColumn:inStatement:] in FMDatabase.o
  "_sqlite3_busy_handler", referenced from:
      -[FMDatabase setMaxBusyRetryTimeInterval:] in FMDatabase.o
  "_sqlite3_changes", referenced from:
      -[FMDatabase changes] in FMDatabase.o
  "_sqlite3_close", referenced from:
      -[FMDatabase close] in FMDatabase.o
  "_sqlite3_column_blob", referenced from:
      -[FMResultSet dataForColumnIndex:] in FMResultSet.o
      -[FMResultSet dataNoCopyForColumnIndex:] in FMResultSet.o
  "_sqlite3_column_bytes", referenced from:
      -[FMResultSet dataForColumnIndex:] in FMResultSet.o
      -[FMResultSet dataNoCopyForColumnIndex:] in FMResultSet.o
  "_sqlite3_column_count", referenced from:
      -[FMResultSet columnCount] in FMResultSet.o
      -[FMResultSet columnNameToIndexMap] in FMResultSet.o
      -[FMResultSet kvcMagic:] in FMResultSet.o
      -[FMResultSet resultDictionary] in FMResultSet.o
  "_sqlite3_column_double", referenced from:
      -[FMResultSet doubleForColumnIndex:] in FMResultSet.o
  "_sqlite3_column_int", referenced from:
      -[FMResultSet intForColumnIndex:] in FMResultSet.o
  "_sqlite3_column_int64", referenced from:
      -[FMResultSet longForColumnIndex:] in FMResultSet.o
      -[FMResultSet longLongIntForColumnIndex:] in FMResultSet.o
  "_sqlite3_column_name", referenced from:
      -[FMResultSet columnNameToIndexMap] in FMResultSet.o
      -[FMResultSet kvcMagic:] in FMResultSet.o
      -[FMResultSet resultDictionary] in FMResultSet.o
      -[FMResultSet columnNameForIndex:] in FMResultSet.o
  "_sqlite3_column_text", referenced from:
      -[FMResultSet kvcMagic:] in FMResultSet.o
      -[FMResultSet stringForColumnIndex:] in FMResultSet.o
      -[FMResultSet UTF8StringForColumnIndex:] in FMResultSet.o
  "_sqlite3_column_type", referenced from:
      -[FMResultSet stringForColumnIndex:] in FMResultSet.o
      -[FMResultSet dateForColumnIndex:] in FMResultSet.o
      -[FMResultSet dataForColumnIndex:] in FMResultSet.o
      -[FMResultSet dataNoCopyForColumnIndex:] in FMResultSet.o
      -[FMResultSet columnIndexIsNull:] in FMResultSet.o
      -[FMResultSet UTF8StringForColumnIndex:] in FMResultSet.o
      -[FMResultSet objectForColumnIndex:] in FMResultSet.o
      ...
  "_sqlite3_create_function", referenced from:
      -[FMDatabase makeFunctionNamed:maximumArguments:withBlock:] in FMDatabase.o
  "_sqlite3_data_count", referenced from:
      -[FMResultSet resultDict] in FMResultSet.o
      -[FMResultSet resultDictionary] in FMResultSet.o
  "_sqlite3_errcode", referenced from:
      -[FMDatabase lastErrorCode] in FMDatabase.o
      -[FMDatabase errorWithMessage:] in FMDatabase.o
      -[FMResultSet hasAnotherRow] in FMResultSet.o
  "_sqlite3_errmsg", referenced from:
      -[FMDatabase lastErrorMessage] in FMDatabase.o
      -[FMDatabase executeUpdate:error:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMResultSet nextWithError:] in FMResultSet.o
  "_sqlite3_exec", referenced from:
      -[FMDatabase executeStatements:withResultBlock:] in FMDatabase.o
  "_sqlite3_finalize", referenced from:
      -[FMDatabase close] in FMDatabase.o
      -[FMDatabase executeQuery:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMDatabase executeUpdate:error:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMStatement close] in FMDatabase.o
      -[FMDatabase(FMDatabaseAdditions) validateSQL:error:] in FMDatabaseAdditions.o
  "_sqlite3_free", referenced from:
      -[FMDatabase executeStatements:withResultBlock:] in FMDatabase.o
  "_sqlite3_last_insert_rowid", referenced from:
      -[FMDatabase lastInsertRowId] in FMDatabase.o
  "_sqlite3_libversion", referenced from:
      +[FMDatabase sqliteLibVersion] in FMDatabase.o
  "_sqlite3_next_stmt", referenced from:
      -[FMDatabase close] in FMDatabase.o
  "_sqlite3_open", referenced from:
      -[FMDatabase open] in FMDatabase.o
  "_sqlite3_open_v2", referenced from:
      -[FMDatabase openWithFlags:vfs:] in FMDatabase.o
  "_sqlite3_prepare_v2", referenced from:
      -[FMDatabase executeQuery:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMDatabase executeUpdate:error:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMDatabase(FMDatabaseAdditions) validateSQL:error:] in FMDatabaseAdditions.o
  "_sqlite3_reset", referenced from:
      -[FMDatabase executeUpdate:error:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMStatement reset] in FMDatabase.o
  "_sqlite3_sleep", referenced from:
      _FMDBDatabaseBusyHandler in FMDatabase.o
  "_sqlite3_step", referenced from:
      -[FMDatabase executeUpdate:error:withArgumentsInArray:orDictionary:orVAList:] in FMDatabase.o
      -[FMResultSet nextWithError:] in FMResultSet.o
  "_sqlite3_threadsafe", referenced from:
      -[FMDatabase initWithPath:] in FMDatabase.o
      +[FMDatabase isSQLiteThreadSafe] in FMDatabase.o
  "_sqlite3_user_data", referenced from:
      _FMDBBlockSQLiteCallBackFunction in FMDatabase.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)