http://ishare.iask.sina.com.cn/search.php?key=%B4%F3%B9%A411%C7%EF%A1%B6%B8%B4%B1%E4%BA%AF%CA%FD%D3%EB%BB%FD%B7%D6%B1%E4%BB%BB%A1%B7%D4%DA%CF%DF%D7%F7%D2%B5&format=
复变函数与积分变换1
DABBA CDACB 判断BBABB BBBBA
复变函数与积分变换2
ACBBA DCDBA ABBAB AABAA
变函数与积分变换3
CBDCA ABDAB BBBBB BABBB