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 ...

Java provides a way for the programmer to exercise control over memory management by marking certain objects as expendable via reference objects. Should an application’s memory requirements quickly ...

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 ...