作业三：PSP记录个人项目耗时情况

PSP2.1	Personal Software Process Stages	Time
Planning	计划	20min
Estimate	估计开发时间	3h
Development	开发	20min
Analysis	需求分析	20min
Design Sepc	生成设计文档	10min
Design Review	设计复审	15min
Coding Standard	代码规范	15min
Design	设计	1h
Coding	编码	1h
Test	测试	10min
Postmortem&Report	总结和报告	20min