2016.03.10-2016.03.17 Work hours and content this week

This week's study content: I give oneself weekly is to study 3.5 hours, I in the class earnest study three hours, returned to the dormitory also studies for half an hour. In this week three hours of classroom teacher let me write arithmetic, just start is the user input two number and an operator, find out the result, is simple subtraction, just start to compile this code, I was wrestling, how also can't think out, later from the internet saw someone similar code, I knocked it into, Then run out of my own debugging, and slowly pondering finally succeeded, and then the teacher let input three number and two operators to find the results, I learned this time, I myself on the code to adapt to the code to understand and deepen, and finally to learn the C language and C # thought up, Slowly the code naturally comes out, but this is just the beginning, I learned the most basic arithmetic, I am still poor, but I believe that in my hard study, will have some harvest.

This week's reading: Waterfall models in the software development process model: In 1970, Winston Roys presented the famous waterfall model. Until the early the 1980s, it had been the only widely used software development process model. Waterfall model divides the software life cycle into 6 basic activities of planning, requirement analysis, software design, program writing, software testing and operation maintenance, and stipulates their top-down, interconnected fixed order, like waterfall water, descending. In the waterfall model, the activities of software development are conducted in a linear manner, and the current activity receives the work result of the previous activity, and implements and completes the required work content. The work result of the current activity needs to be validated, and if the validation is passed, the result will continue with the next activity as input to the next activity, otherwise the modification is returned.

2016.03.10-2016.03.17 Work hours and content this week