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bitcoin.py
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# -*- coding: utf-8 -*-
import requests
from bs4 import BeautifulSoup
import time
def testfile():
try:
asset=open(".\\asset.txt","r+",encoding="utf-8")
except FileNotFoundError:
print("建立資產表中...")
asset=open(".\\asset.txt","w")
for i in coins:
asset.writelines(i+": 0\n")
asset.writelines("balance: 0")
asset.close()
def prompt():
print("輸入1購入貨幣")
print("輸入2售出貨幣")
print("輸入3查詢貨幣價格")
print("輸入4查詢交易紀錄")
print("輸入5查詢盈餘")
print("輸入0結束程式(記錄將保存)")
def coincode():
while(True):
print("目前支援的貨幣: ",end="")
for i in coins:
print(i,end=" ")
print()
code=input("輸入貨幣代碼(大小寫有別): ")
if(code in coins):
break
else:
print("目前不支援此貨幣，請重新輸入\n")
return code
def getamount():
while(True):
try:
amount=float(input("輸入數量: "))
if(amount>0):
break
else:
print("請輸入大於0的數量")
except ValueError:
print("請輸入數字")
return amount
class coin:
def buy(code,amount,value):
global asset
global records
try:
asset=open(".\\asset.txt","r",encoding="utf-8")
assetlist=asset.readlines()
asset.close()
asset=open(".\\asset.txt","w",encoding="utf-8")
index=coins.index(code)
add=float(assetlist[index].strip().replace(code+": ",""))+amount
assetlist[index]=code+": "+str(add)+"\n"
balance=float(assetlist[-1].strip().replace("balance: ",""))-amount*value
assetlist[-1]="balance: "+str(balance)
asset.seek(0,0)
for i in assetlist:
asset.writelines(i)
records=open(".\\record.txt","a+",encoding="utf-8")
nowtime=time.strftime("%Y-%m-%d %H:%M:%S")
records.writelines(nowtime+" buy "+code+" "+str(amount)+" at $"+str(value)+"\n")
print("交易完成\n")
asset.close()
records.close()
except FileNotFoundError:
print("檔案消失，請重新啟動程式\n")
def sale(code,amount,value):
global asset
global records
try:
asset=open(".\\asset.txt","r+",encoding="utf-8")
assetlist=asset.readlines()
asset.close()
asset=open(".\\asset.txt","w",encoding="utf-8")
index=coins.index(code)
minus=float(assetlist[index].strip().replace(code+": ",""))-amount
if(minus<0):
print("數量不足，您只有%f個%s"%(minus+amount, code))
print("交易失敗\n")
else:
assetlist[index]=code+": "+str(minus)+"\n"
balance=float(assetlist[-1].strip().replace("balance: ",""))+amount*value
assetlist[-1]="balance: "+str(balance)
asset.seek(0,0)
for i in assetlist:
asset.writelines(i)
records=open(".\\record.txt","a+",encoding="utf-8")
nowtime=time.strftime("%Y-%m-%d %H:%M:%S")
records.writelines(nowtime+" sale "+code+" "+str(amount)+" at $"+str(value)+"\n")
print("交易完成\n")
records.close()
asset.close()
except FileNotFoundError:
print("檔案消失，請重新啟動程式\n")
def getvalue(code):
url="https://crypto.cnyes.com/"+code+"/24h"
try:
res=requests.get(url)
except:
return -1.0
bs=BeautifulSoup(res.content,"html.parser")
lastprice=bs.find("div","last-price")
price=lastprice.find("span","big-num").text+lastprice.find("span","small-num").text
price=price.replace(",","")
return float(price)
class account:
def record():
try:
global records
records=open(".\\record.txt","r",encoding="utf-8")
recordlist=records.readlines()
if(len(recordlist)==0):
print("無紀錄\n")
else:
print("紀錄如下：")
for i in recordlist:
print(i.strip())
print()
except FileNotFoundError:
print("無紀錄\n")
records.close()
def getmoney():
global asset
asset=open(".\\asset.txt","r",encoding="utf-8")
assetlist=asset.readlines()
print("目前盈餘為: "+assetlist[-1].replace("balance: ","").strip()+"元\n")
asset.close()
coins=["BTC", "ETH", "XRP", "BCH", "EOS", "XLM", "LTC", "USDT", "BSV", "TRX"]
records=open(".\\record.txt","a+",encoding="utf-8")
records.close()
testfile()
while(True):
while(True):
prompt()
try:
choice=int(input("輸入: "))
break
except ValueError:
print("請輸入數字\n")
if(choice==0):
break
elif(choice==1):
code=coincode()
value=coin.getvalue(code)
if(value<0):
print("連線異常，無法取得貨幣價格")
buy="N"
else:
print("目前%s的價格為%.3f元"%(code,value))
buy=input("確認要購買(Y/N)？")
if(buy.upper()=="Y"):
amount=getamount()
coin.buy(code,amount,value)
else:
print("交易取消\n")
elif(choice==2):
code=coincode()
value=coin.getvalue(code)
if(value<0):
print("連線異常，無法取得貨幣價格")
sale="N"
else:
print("目前%s的價格為%.3f元"%(code,value))
sale=input("確認要販賣(Y/N)？")
if(sale.upper()=="Y"):
amount=getamount()
coin.sale(code,amount,value)
else:
print("交易取消\n")
elif(choice==3):
code=coincode()
value=coin.getvalue(code)
if(value<0):
print("連線異常，無法取得貨幣價格\n")
else:
print("%s的價格為%.3f元\n"%(code,value))
elif(choice==4):
account.record()
elif(choice==5):
account.getmoney()
else:
print("輸入代碼錯誤\n")
print("程式即將關閉，歡迎再度使用")