问题
582Q6P 3b7RFP98 8POF9A. 0 B. 1 C. 2 D. 3
582Q6P 3b7RFP98 8POF9
A. 0
B. 1
C. 2
D. 3
请帮忙给出正确答案和分析,谢谢!
Fatal error: Uncaught [XSException] ../../../usr/local/xunsearch/sdk/php/lib/XS.php(2559): Connection refused(C#111, localhost:8384)
thrown in /usr/local/xunsearch/sdk/php/lib/XS.php on line 2559