一：std:编译器错误解决
二：错误提示
"std::string::find_first_of(char const*, unsigned long, unsigned long) const", referenced from:
split_string(std::string const&, std::string const&) in libopencv_core.a(cmdparser.o)
"std::string::find_first_of(char, unsigned long) const", referenced from:
zxing::oned::Code39Reader::decodeRow(int, zxing::Ref<zxing::BitArray>) in
三：解决办法
