程序编译通过。链接时出现问题：
未定义                  文件中的
 符号                       在文件中
OCIDescriptorAlloc                  /var/tmp//ccwxoZyC.o
OCIErrorGet                         /var/tmp//ccwxoZyC.o
OCITransCommit                      /var/tmp//ccwxoZyC.o
OCIAttrSet                          /var/tmp//ccwxoZyC.o
OCIStmtPrepare                      /var/tmp//ccwxoZyC.o
OCIHandleAlloc                      /var/tmp//ccwxoZyC.o
OCIBindByName                       /var/tmp//ccwxoZyC.o
OCIAttrGet                          /var/tmp//ccwxoZyC.o
OCIInitialize                       /var/tmp//ccwxoZyC.o
OCISessionBegin                     /var/tmp//ccwxoZyC.o
OCIEnvInit                          /var/tmp//ccwxoZyC.o
OCILobWrite                         /var/tmp//ccwxoZyC.o
OCIParamGet                         /var/tmp//ccwxoZyC.o
OCIStmtExecute                      /var/tmp//ccwxoZyC.o
OCIServerDetach                     /var/tmp//ccwxoZyC.o
OCIStmtFetch                        /var/tmp//ccwxoZyC.o
OCIDescriptorFree                   /var/tmp//ccwxoZyC.o
OCIServerAttach                     /var/tmp//ccwxoZyC.o
OCIHandleFree                       /var/tmp//ccwxoZyC.o
OCISessionEnd                       /var/tmp//ccwxoZyC.o
OCIDefineByPos                      /var/tmp//ccwxoZyC.o
ld: 致命的: 符号参照错误. 没有输出被写入a.out
collect2: ld returned 1 exit status
*** Error code 1

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