Pairing: Compound and beautify edition

I. Customer needs

Completed requirements:

1. Customer said: Help me develop a compound interest calculation software.

2. If according to simple interest calculation, how much is the principal and interest?

3. If a pension of $3 million is to be raised after 30, the average annual return is 3%, what is the amount of principal that must be invested now?

4. Interest rate is so low, compounding profits are so strong, if take 1 million yuan to buy annual rate of return 10% of the stock, if all smooth, too long, 1 million yuan becomes 2 million yuan?

5. If I want to turn $1 million into $2 million within 10 years, how much should I find the investment tool to help me achieve my goals? If you want to double the principal after 5 years, how much should the rate of return be at least?

6. If the savings of $30,000 are to be invested annually, with a return of 3% per annum, and then a new round of investment in these Benli and annuities, what will the total value of assets be after 30 years? What if we switch to 3000 a month?

7. To pursue benefits and to face unpredictable financial investment risks, "you cannot put eggs in the same basket", so it is necessary to make a portfolio investment.

The above calculations and comparisons can help customers make investment decisions.

New requirements:

Customers under the guidance of the people have more ideas:

1. I often fill in this data ..... Would you please fill it in beforehand? ......
2. Make the interface simple and beautiful.
3. Can you help me to turn into an app, I put on the mobile phone is more convenient?
4. I think this is very useful, many people may need these features, to do my public number it?
5. Could you please not let me fill out the form, let me wind the news, or say a word to the phone?

Each group selected one or two directions to improve, let our investment calculation and recording tools to be released to the user's version, and published a blog to explain and summarize the update.

Two. Task assignment

me: interface Insert picture and find bug

teammates: responsible for the insertion of music and the details of the interface to beautify

Three. Pair members

Name: Liang

Study No.: 201406114248

Blog Park Address: http://www.cnblogs.com/RSTART/

GitHub Address: Https://github.com/fengzf/Ruan/tree/master/Fuli

Four. Estimated Time

Estimated Time: 4h

Estimated code line: 100

Actual elapsed time: 2h

Actual code line: 130

Five. Main code

Music section:

Interface section:

Six. Results

Seven. Harvesting and sentiment

I am more interested in this homework request. May be because "the heart of beauty is the people have it." So, I feel the power is full of this homework. So when you do it, it takes less time than you expected. This is my second cooperation with my little friend. The cooperation also has a certain degree of tacit understanding. I think this is a very important bond that is harvested in the homework.

This homework, we through mutual cooperation, mutual discussion, finally set the interface is relatively generous, decent, the overall feeling is quite beautiful, and we also inserted the music, so that users can have a better feeling when using, can better attract the user's eyeball.

The completion of this assignment, I feel that I still have a certain progress, but also have a greater space for development to explore, to enhance the self. Although I am not so clever, but I firmly believe that "the book Mountain has no Royal road as the path, the wisdom is the Dragon boat". As long as I hold on, I can reap the fruits of the sweat that I have paid.

Pairing: Compound and beautify edition