第二次作业

这次的代码码云地址为：https://gitee.com/M1113/personal_project41678

PSP2.1	Personal Software ProcessStages	预估耗时（分钟）	实际耗时（分钟）
Planning	计划	500	530
Estimate	估计这个任务需要多少时间	550	540
Development	开发	260	240
Analiysis	需求分析（包括学习新技术）	40	40
Design Spec	生成设计文档	10	20
Design Review	设计复审	8	5
Coding Standard	代码规范（为目前的开发制定合适的规范）	25	10
Design	具体设计	25	10
Coding	具体编码	100	150
Code Review	代码复审	50	130
Test	测试（自我测试，修改代码，提交修改）	30	20
Reporting	报告	0	0
Test Repor	测试报告	0	0
Size Measurement	计算工作量	0	0
Postmortem & Process Improvement Plan	事后总结，并提出过程改进计划	60	30
	合计	608	655

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

刚拿到题目的时候，感觉有点困难，按照着老师的视频，把Fork 码云 项目 复制到自己的仓库里，去网上查找自己不会的代码，以下是我写的代码。

import re

def convert_list(a,arg):
list1 = [] 
num = ""
for i in a:
if num.isnumeric() and i.isdigit() :
list1.pop()
num = num + i
elif i == "." :
list1.pop()
num = num +i
elif num[-1:] == "." and i.isdigit():
print(num[-1:])
list1.pop()
num = num+i
else:
num = i
list1.append(num)
for i2 in list1:
arg.append(i2)
if arg[0] == "-":
arg.insert(1,arg[0]+arg[1])
arg.pop(0)
arg.pop(1)
print(arg)

return arg

def zz(a,arg):
# 计算乘除
while True:
if "*" in listlist or "/" in listlist:
quzhi = re.search(
"\-\d+.\d+\*\d+.\d+|\-\d+.\d+\/\d+.\d+|\-\d+\*\d+|\-\d+\/\d+|\d+.\d+\*\d+\.\d+|\d+\.\d+\*\d+|\d+\*\d+\.\d+|\d+\*\d+|\d+.\d+\/\d+\.\d+|\d+\.\d+\/\d+|\d+\/\d+\.\d+|\d+\/\d+",
a).group()
quzhi2 = []
quzhi2 = convert_list(quzhi, quzhi2)
result = float()
if "*" in quzhi2:
num3 = quzhi2.index("*")
list_n = quzhi2[0:num3]
x = "".join(list_n)
list2_n = quzhi2[num3 + 1:]
y = "".join(list2_n)
result = float(x) * float(y)
re1 = listlist.index("*")
else:
result = float(quzhi2[0]) / float(quzhi2[2])
re1 = listlist.index("/")
listlist.pop(re1 - 1)
listlist.pop(re1 - 1)
listlist.pop(re1 - 1)
listlist.insert(re1 - 1, str(result))

a = "".join(listlist)
else:
break

while True:
if "+" in listlist or "-" in listlist:
quzhi = re.search(
"\-\d+.\d+\+\d+.\d+|\-\d+.\d+\-\d+.\d+|\-\d+\+\d+|\-\d+\-\d+|\d+.\d+\+\d+\.\d+|\d+\.\d+\+\d+|\d+\+\d+\.\d+|\d+\+\d+|\d+.\d+\-\d+\.\d+|\d+\.\d+\-\d+|\d+\-\d+\.\d+|\d+\-\d+",a).group()
quzhi2 = []
quzhi2 = convert_list(quzhi, quzhi2)
result = float()
if "+" in quzhi2:
num3 = quzhi2.index("+")
list_n = quzhi2[0:num3]
x = "".join(list_n)
list2_n = quzhi2[num3 + 1:]
y = "".join(list2_n)
result = float(x) + float(y)
re1 = listlist.index("+")
else:
num3 = quzhi2.index("-")
list_n = quzhi2[0:num3]
x = "".join(list_n)
list2_n = quzhi2[num3 + 1:]
y = "".join(list2_n)
result = float(x) - float(y)
re1 = listlist.index("-")
listlist.pop(re1 - 1)
listlist.pop(re1 - 1)
listlist.pop(re1 - 1)
listlist.insert(re1 - 1, str(result))

a = "".join(listlist)
else:
break
return a

if __name__ == "__main__":
# a = "1+10.0*3.0/2-2"
while True:
a = input("please input Calculation formula:<1+3*2-1>:")
print(a)

listlist = []
convert_list(a,listlist)
print(listlist)
a = ccjj(a,listlist)

print("=================\n计算结果为:", a)

做这项作业感觉有点困难，上网搜索了一定的知识，有的不会问了同学，但是还要努力去学习有关Python的代码，这次做的有一点小问题，希望下次我可以把问题解决，给自己加油。