iphone - 如何在尝试实现我的 DBAccess 类时修复 sqlite3 错误

Question

我正在研究我的数据库访问类，它试图使用 sqlite3 函数调用数据库，但我收到了所有这些错误，如果有人以前经历过这些错误或者他们有任何错误，我只是受伤了了解为什么它们可能会发生。

Undefined symbols:
  "_sqlite3_finalize", referenced from:
      -[DBAccess getAllMakes] in DBAccess.o
  "_sqlite3_errmsg", referenced from:
      -[DBAccess initalizeDatabase] in DBAccess.o
      -[DBAccess closeDatabase] in DBAccess.o
  "_sqlite3_step", referenced from:
      -[DBAccess getAllMakes] in DBAccess.o
  "_sqlite3_column_text", referenced from:
      -[DBAccess getAllMakes] in DBAccess.o
  "_sqlite3_prepare_v2", referenced from:
      -[DBAccess getAllMakes] in DBAccess.o
  "_sqlite3_open", referenced from:
      -[DBAccess initalizeDatabase] in DBAccess.o
  "_sqlite3_close", referenced from:
      -[DBAccess initalizeDatabase] in DBAccess.o
      -[DBAccess closeDatabase] in DBAccess.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

Answer 1

将框架 libsqlite3.0.dylib 添加到框架中的项目