摘要:
先上图: 本文根据的类: public class Add { public int add(){ int a = 1; int b = 2; int c = (a + b) * 100; return c; } public static void main(String[] args) { Ad 阅读全文
摘要:
最近在写SQL多表更新时遇到问题,网上找了找,几乎都是这样: 1.update t1 set t1.c2 = t2.c2 from t2 where t1.c1 = t2.c1 2.update t1 set t1.c2 = t2.c2 from t1 inner join t2 on t1.c1 阅读全文