Python 每N毫秒重复N次的函数

我是Python编程的初学者。我基本上是想创建一个程序，每毫秒对ADC的电压进行一次采样，将数据放入矩阵，然后将其导出到Excel文件。现在我正在为ADC数据使用占位符。以下是到目前为止我得到的信息：

import xlsxwriter
import time
import numpy
import threading

a = numpy.array(['Time (ms)','Current (A)'])    #Writes header values, sets up array a
maxtime = 200   #Limit for how long the program will run, in ms
elapsed = 0

def readdata(maxtime):
    global elapsed
    global a
    if elapsed <= maxtime:
        threading.Timer(0.01, readdata)
        elapsed +=1
        b = numpy.array(['Test1', 'Test2']) #'Test1' and 'Test2' Will eventually be replaced with ADC data
        a = numpy.concatenate((a, b), axis=0)   #Combines the arrays
    else:
        generatespreadsheet(a)


def generatespreadsheet():
    global a
    workbook = xlsxwriter.Workbook(time.strftime("%Y%m%d-%H%M%S") + ".xlsx") #Define workbook name as date and time
    worksheet = workbook.add_worksheet()    #Adds the first sheet
    row = 0

    for col, data in enumerate(a):
        worksheet.write_row(col, row, data) #write the array in Excel
    workbook.close()

readdata(maxtime)

---

我对pythonic线程的使用不多，但感觉您错过了这里的开始操作<代码>一些线程.start（）启动线程时可能需要重复的线程。做但是你确定要启动这么多线程吗？乍一看，您将得到大约200条线程。不确定你的机器是否能处理。。。我的建议是更改逻辑…感谢@bayko的帮助，尽管我不确定在代码中的何处或如何实现这一点。

    import xlsxwriter
import time
import numpy
import threading

a = numpy.array(['Time (ms)','Current (A)'])    #Writes header values, sets up array a
maxtime = 200   #Limit for how long the program will run, in ms
elapsed = 0

def do_every(period,f):
    def g_tick():

        t = time.time()
        count = 0
        while True:
            count += 1
            yield max(t + count*period - time.time(),0)
    g = g_tick()
    while True:
        time.sleep(next(g))
        f()
        global elapsed
        global maxtime
        elapsed += 1
        if elapsed >= maxtime
            generatespreadsheet()



def readdata():
    global a
    b = numpy.array(['Test1', 'Test2']) #'Test1' and 'Test2' Will eventually be replaced with ADC data
    a = numpy.concatenate((a, b), axis=0)   #Combines the arrays




def generatespreadsheet():
    global a
    workbook = xlsxwriter.Workbook(time.strftime("%Y%m%d-%H%M%S") + ".xlsx") #Define workbook name as date and time
    worksheet = workbook.add_worksheet()    #Adds the first sheet
    row = 0

    for col, data in enumerate(a):
        worksheet.write_row(col, row, data) #write the array in Excel
    workbook.close()
    exit()


do_every(0.001,readdata)