Shulou(Shulou.com)06/03 Report--

What's the difference between + + and + + a? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

The difference is: the timing of self-increment of the variable "a" is different; "await +" and "+ + a" belong to the self-increment operator; "aura +" is to take the value first, and then to increment "1"; "+ a" is to increment "1" first, and then to take the value.

Both + + an and + + a belong to self-increasing operators, and the difference is that the value of variable an is self-incremented at different times. A value + is taken first, and then self-incremented. + + an is to increase itself first, and then to take a value.

Example

For example, let's assume that Xerox 3 is not the same as 4.

(1) (xylene +) + (+ + x) = 8

Explanation: for the first (x), the value obtained by (x +) is 3, and then x is self-increasing, so for the second (+ + x), because + + x is the first self-increment, the value obtained by (+ + x) is 5, and then x is 5, so the result is 8.

(2) (xylene +) / 3 + (--y) * 2-(xmai -)% 6 + (yellowing +) * 3-(ymuri -)

1'6-4'9-4'8

Explanation: first, the value of (xtrees +) is 3, then xrays 4; then (- y) is 3, at this time yellow3; then (xmuri -) is 4, then xrays 3; then (ycolors +) is 3, then ytrees 4; finally, (yrain -) takes 4, then ytrees 3.

Note: () can increase the priority of arithmetic, so the expression in parentheses is calculated first, but the value of x is x, and then x is incrementing itself.

Key point: + + operation has a high priority.

Interview questions:

Int I = 10i = iTunes +

At this point, what is the value of I?

Answer: enter a value of 10 for I

Parsing: first, the value of ifold + is 10, and then I increments itself, and at this time I increases 11, and finally assigns it, so the final output value of I is 10.

This is the answer to the question about the difference between averse + and + + a. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.