Lonely Stupid Bird, if you see this title, please go to my latest question, 50 points left for you!

Force analysis (I won't draw it): because the object is in motion with four forces: gravity, support, tension, friction (resistance), gravity and support balance each other, so they cancel each other, and the pull pulls friction instead of gravity.

So the gravitational force of the object g=m g=5kg, the frictional force (resistance) =, and the resultant force is the pulling force minus the frictional force:.

Love is a piece of winter sunshine, which makes the hungry and cold feel the warmth of the world; Love is a clear spring in the desert, so that people on the verge of despair can see the hope of life; Love is the rain that falls on the land for a long time, so that the withered soul feels the nourishment of emotions.

Life is like a piece of sweet chocolate, life is like a piece of bitter chocolate, the key is the view of life.

Sometimes life is like a sweet piece of chocolate, sometimes life is like a bitter piece of chocolate, the key is how you think about life.

It's nothing, it's normal, I've been blocked two numbers, just because I don't agree with some of the practices of the ferry, you are also careful, you are not negotiable.

He doesn't even let Zen Xiaoxing talk about himself, and he can still make you judge some sensitive personnel?

He didn't dare. He just wants to make money, he doesn't want to make trouble, understand? Long live understanding.

Use the mobile phone on the 'easy search' network,After entering**, it will be automatically adjusted to a format suitable for the mobile phone,The update is also very fast,No charge,But the traffic still has to be consumed。

The return type can be either a simple data type or a class type!

outdate() is a member method!!

Member methods can only be called by instances, if we don't return an exam3 6 object, what do we use as an instance?

If you change the return type to void int and so on, you can't call outdate().

If you don't understand, ask again!

Yes, because the last sentence of the tomorrow() function does not have return d; Is it? This is to return an exam3 class 6 type (variable).

You're really. 30,000* means a high salary, a high pressure ......