Question

我有python程序，该程序从api读取数据并将其写入文件eth.txt。我想编程每天创建一个带有日期名称的新文件，例如eth_9.11.2018.txt，eth_10.11.2018.txt，....，然后在上面写上。你能帮我吗？

import time
import threading
import urllib
import datetime


while True:
    ts = time.time()
    h = datetime.datetime.fromtimestamp(ts).strftime('%H:%M:%S') 
    d = datetime.datetime.fromtimestamp(ts).strftime('%d.%m.%Y')
    # read from API
    ethash = urlopen('https://www.coincalculators.io/api/allcoins.aspx?hashrate=420000000&power=2000&powercost=0.15&difficultytime=0&algorithm=Ethash').read()
    dataethash= json.loads(ethash)
    global coinethash,algoethash,dayUSDethash,dayEUethash
    coinethash = dataethash[0]["name"] 
    algoethash = dataethash[0]["algorithm"] 
    dayUSDethash = dataethash[0]["profitInDayUSD"]
    diffethash = dataethash[0]["currentDifficulty"]
    print ("Difficulty:"),diffethash
    print ("Algoritm:"),algoethash
    print ("Coin:"),coinethash
    dayUSDethash = float(dayUSDethash)
    dayEUethash = dayUSDethash*0.88
    # Write ti file
    profit = open("/home/pi/Skripte/eth.txt", "a")    
    profit.write(str(h))
    profit.write('*')
    profit.write(str(d))
    profit.write('*')
    profit.write(str(algoethash))
    profit.write('*')
    profit.write(str(diffethash))
    profit.write('*')
    profit.write(str(coinethash))
    profit.write('*')
    profit.write(str("%.2f" % dayEUethash))
    profit.write('*')
    profit.write("\n") #new line
    print("OK")
    time.sleep(500)

..顺便说一下... 是否可以以更友好和简短的方式阻止“ #write to file”写入？它必须在单词之间包含一个字符*，并且必须用新行写出... 谢谢您的帮助！

Answer 1

您可以动态定义要写入的文件的名称。在这种情况下，eth_{}.txt'.format(d)会在当天附加当天。

要更优雅地写入文件，您可以在字符串列表中以'*'一行。

with open('eth_{}.txt'.format(d), 'a') as profit:
    profit.write('*'.join([str(x) for x in [h, d, algoethash, diffethash, coinethash, "%.2f" % dayEUethash, '\n']]))

Python每天都会创建新文件以进行写入

1 个答案: