Learning_ introduction to computer science and programming_writing,testing,and debugging programs

writing,testing,and debugging programs

take it a step at time

　　1　understand problem

　　2　think about overall structure and algorithms independently of expression in programming language

　　3　break into small parts

　　4　identify useful abstractions(data and functional)

　　5　code and unit test a part at a time

　　6　first functionality, then efficiency

　　7　start with pseudo code

be systematic

whe ndebugging, think scientific method

ask yourself why program did whtat it did, not why it didn't do what you wanted it to do.

　　

转载于:https://www.cnblogs.com/aprilapril/archive/2012/02/27/2369293.html