select count(*) into :li_count from kctj where pro_code=:p1 and ck_code=:c1; 但相同的程序我在入库单是就能运行。。。。求大虾们帮忙解决 ...

It doesn’t take much Java development experience to learn firsthand what the NullPointerException is about. In fact, one person has highlighted dealing with this as the number one mistake Java ...