调用示例
ExpandDimsType dim_type("1100");
StorageFormat format(ge::Format::FORMAT_NCHW, ge::Format::FORMAT_C1HWNC0, dim_type);
StorageFormat another_format(ge::Format::FORMAT_NCHW, ge::Format::FORMAT_NC, dim_type);
bool is_same_fmt = format == another_format; // false