奇安信2019春招测试方向试题

class A {
     public:
         virtual void Foo() = 0
         virtual void Print() { printf("A\n") }
 }
 class B: public A{
     public:
         void Foo() override { printf("FOO\n") }
         void Print() override { printf("B\n") }
 }
 int main() {
     A* ptr1 = new A
     A* ptr2 = new B
     ptr1->Print()
     ptr2->Print()
     return 0
 }

class A {
    int content_
}

class A {
    public:
        void Print() {
            printf("%d\n", content_)
        }
    public:
        int content_
}
void Add(A a) {
    a.content_ ++
}
int main () {
    A a{content_: 1}
    Add(a)
    a.Print()
    return 0
}

int foo() {
    return 1
}
int bar() {
    return 2
}
int main() {
    int a = foo(), bar()
    int b
    b = (foo(), bar())
    printf("%d,%d\n", a, b)
    return 0
}

class A {
    public:
        A() { printf("A()\n") }
        virtual ~A() { printf("~A()\n") }
}
class B : public A {
    public:
        B() { printf("B()\n") }
        ~B() { printf("~B()\n") }
}
int main() {
    auto tmp = B()
    return 0
}

list = ['a', 'b', 'c', 'd', 'e']
print list[10:]

x = [90,87,93]
y = ["zhang", "wang","zhao"]
print(list(zip(y,x)))

for i in reversed(range(10, 0, -2)):
print(i,end=" ")

int func(int a,b,c){
int k=1
if ( (a>0) &&(b<0) && (a+c>0) )  k=k+a
else  k=k+b
if (c>0)  k=k+c
return k
}

int test（int A,int B）
{
      if((A>1)AND (B<10）)   then
           X=A-B
      if((A=2) OR (B>20))      then
           X=A+B
       return x
}

create view stock_view as select * from stock where 交易所 =” 深圳”

 BEGIN TRANSACTION update Account set balance=7800 where id=1 update Account set balance=9000 where id=1 

  IF @@error <> 0   ROLLBACK TRANSACTION ELSE   COMMIT TRANSACTION