sales.append(sale)
return sales
def calc_sales_total(sales):
"""
计算销售总额
:param sales: 销售记录列表
:return: 销售总额
"""
total = 0
for s in sales:
amount = s.price * s.quantity
total += amount
return total
filename = dlg.get_open_file_name("请选择csv文件", dlg.FileFilter.CSVFiles)
if filename == "":
print("未选择文件！")
exit(-1)
sales = read_csv(filename)
dlg.show_objects(sales)
total = calc_sales_total(sales)
dlg.show_message(f"销售总额{total}")
code = "sh601006"
#抓取网页(json格式)
response = request.urlopen('http://hq.sinajs.cn/list=' + code)
raw_data = response.read().decode('gbk')
#提取""括起的内容(两个""之间的内容)
quote1 = raw_data.find('"')
quote2 = raw_data.find('"', quote1 + 1)
raw_data = raw_data[quote1 + 1:quote2]
#按逗号分割成多个数据项
datas = raw_data.split(',')
result = "股票{0}目前的价格是{1},最高价{2},最低价{3}".format(datas[0], datas[3], datas[4],
datas[5])
#使用对话框显示查询结果
dlg.show_message(result, "股票信息")
"""
https://www.cnblogs.com/phpxuetang/p/4519446.html
以大秦铁路（股票代码：601006）为例，如果要获取它的最新行情，只需访问新浪的股票数据
接口：
http://hq.sinajs.cn/list=sh601006
这个url会返回一串文本，例如：
var hq_str_sh601006="大秦铁路, 27.55, 27.25, 26.91, 27.55, 26.20, 26.91, 26.92,
22114263, 589824680, 4695, 26.91, 57590, 26.90, 14700, 26.89, 14300,
26.88, 15100, 26.87, 3100, 26.92, 8900, 26.93, 14230, 26.94, 25150, 26.95, 15220, 26.96, 2008-01-11, 15:05:32";
这个字符串由许多数据拼接在一起，不同含义的数据用逗号隔开了，按照程序员的思路，顺序号从0开始。
0：”大秦铁路”，股票名字；
1：”27.55″，今日开盘价；
2：”27.25″，昨日收盘价；
3：”26.91″，当前价格；
4：”27.55″，今日最高价；
def find_max_score(scores):
"""
寻找并返回scores列表中成绩最高的学生信息
:param scores: scores列表
:return: 最高分同学信息
"""
max_score = scores[0]
for score in scores:
if score.score > max_score.score:
max_score = score
return max_score
# 读取文件
filename = dlg.get_open_file_name("选择要打开的文件", dlg.FileFilter.CSVFiles)
if filename == '':
print("未选择文件")
exit(-1)
scores = read_csv_file(filename)
dlg.show_objects(scores)
max_score = find_max_score(scores)
dlg.show_message(
f"获得最高分的同学：{max_score.id} {max_score.name},成绩为{max_score.score}")
def find_using_index(index,name_key):
"""
使用index索引列表，查找姓名等于name_key在scores列表中的下标
:param index: 索引列表
:param name_key: 要查找的姓名
:return: 姓名为name_key的学生。None表示找不到。
"""
i_index = hash(name_key) % MAX_INDEX_SIZE
items=index[i_index]
for item in items:
if item.key == name_key:
return item.student
return None
#5-2-2.成绩.csv
filename = dlg.get_open_file_name("请选择成绩csv文件",dlg.FileFilter.CSVFiles)
if filename == "":
print("未选择文件")
exit(-1)
students = read_csv(filename)
dlg.show_objects(students)
index = create_index(students)
name = dlg.get_string("请输入要查找的姓名")
found = find_using_index(index,name)
if found is None:
dlg.show_message(f"找不到姓名为{name}的学生")
else:
dlg.show_message(f"id: {found.id} 姓名: {found.name} 成绩：{found.score}")
import easygraphics.dialog as dlg
def cals_sales_price(price):
sales = 0.9 * price
return sales
price = int(dlg.get_string("请输入原始价格:"))
sales_price = cals_sales_price(price)
dlg.show_message(f"打折后价格为{sales_price}")
def find_using_index(index, name_key):
"""
使用index索引列表，查找姓名等于name_key在scores列表中的下标
:param index: 索引列表
:param name_key: 要查找的姓名
:return: 学生在scores列表中的下标。-1表示列表中无此学生。
"""
i_index = hash(name_key) % MAX_INDEX_SIZE
items = index[i_index]
for item in items:
if item.key == name_key:
return item.index
return -1
filename = dlg.get_open_file_name("请选择成绩csv文件", dlg.FileFilter.CSVFiles)
if filename == "":
print("未选择文件")
exit(-1)
scores = read_csv(filename)
dlg.show_objects(scores)
index = create_index(scores)
name = dlg.get_string("请输入要查找的姓名")
i = find_using_index(index, name)
if i == -1:
dlg.show_message(f"找不到姓名为{name}的学生")
else:
s = scores[i]
dlg.show_message(f"id: {s.id} 姓名: {s.name} 成绩：{s.score}")
import easygraphics.dialog as dlg
def calc_discount(total):
"""
计算折扣数和折后金额
:param total: 购物金额
:return: 折扣数,折后金额
"""
if total < 0:
raise ValueError('total should not < 0!')
if total >= 500:
discountRate = 0.9
elif total >= 200:
discountRate = 0.95
amount = total * discountRate
return discountRate, amount
total = float(dlg.get_string("请输入总金额"))
dis_rate, amount = calc_discount(total)
dlg.show_message(f"折扣率为{dis_rate},折后金额为{amount}")
import easygraphics.dialog as dlg
is_girl = dlg.get_yes_or_no("你是女生吗？")
if is_girl:
dlg.show_message("免费送你个鸡腿~~")
dlg.show_message("继续打饭")
import easygraphics.dialog as dlg
values = dlg.get_many_strings("请输入", labels=["身高(米)", "全票票价"])
height = float(values[0])
full_price = float(values[1])
if height <= 1.3:
price = 0
else:
if height <= 1.5:
price = full_price / 2
else:
price = full_price
dlg.show_message("最终票价为:" + str(price))
return sales
def calc_sub_total(sales, goods_name):
"""
统计指定商品的销售额
:param sales: 销售记录列表
:param goods_name: 要统计的商品名
:return: 指定商品的销售额
"""
total = 0
for s in sales:
if s.name == goods_name:
amount = s.price * s.quantity
total += amount
return total
filename = dlg.get_open_file_name("请选择csv文件", dlg.FileFilter.CSVFiles)
if filename == "":
print("未选择文件！")
exit(-1)
sales = read_csv(filename)
dlg.show_objects(sales)
sub_total = calc_sub_total(sales, "方便面")
dlg.show_message(f"方便面的销售额为{sub_total}元")
class User:
def __init__(self, id, name, borrowed, type):
self.id = id
self.name = name
self.borrowed = borrowed
self.type = type
def calc_books_can_borrow(user):
if user.type == '教师':
n = 10 - user.borrowed
else:
n = 5 - user.borrowed
return n
data = dlg.get_many_strings("用户信息", labels=['编号', '姓名', '已借数量', '类别'])
user_id = data[0]
name = data[1]
borrowed = int(data[2])
type = data[3]
user = User(user_id, name, borrowed, type)
can_borrow = calc_books_can_borrow(user)
dlg.show_message(f"用户{user.name}可以借{can_borrow}本书")
import easygraphics.dialog as gui
s = gui.get_string("your name:")
gui.show_message(f"hello {s}")
import easygraphics.dialog as gui
import math
def sqrt(a, epsilon):
k = 0
xk = a
while True:
k += 1
xk1 = xk
xk = (xk1 + a / xk1) / 2
if math.fabs(xk - xk1) < epsilon:
break
root = xk
return xk
ep = 0.0001
a = float(gui.get_string("请输入a:"))
root = sqrt(a, ep)
gui.show_message(f"{a}的平方根是{root}")
if index.name == key_name:
return index.index
elif index.name < key_name:
start = mid+1
else:
end = mid - 1
return -1
# 从csv文件中读入学生成绩信息，放到scores列表中
# 5-2-1.成绩.csv
filename = dlg.get_open_file_name("请选择成绩csv文件",dlg.FileFilter.CSVFiles)
if filename == "":
print("未选择文件")
exit(-1)
scores = read_csv(filename)
dlg.show_objects(scores,fields=['id','name','clazz','math','literature','english'])
# 创建姓名的折半查找索引
name_indices = create_indices(scores)
dlg.show_objects(name_indices)
# 使用折半查找索引进行查找
key = dlg.get_string("请输入要查找的姓名")
i = find_using_index(name_indices,key)
if i == -1:
dlg.show_message(f"找不到姓名为{key}的学生")
else:
dlg.show_message(f"找到了！是{scores[i]}")
