Python嵌套for循環只運行一次，然後跳過其餘的迭代

Question

我希望此代碼獲得15倍的數據量。當它運行時，第一次進入所有的for循環，然後打印出答案，但是當它在「for num in range（0,15）：」循環中第二次循環時，插入到「for df in page：」中，然後不會深入到其他循環中，只會返回「page_counter」，因爲它應該是200。

我應該怎麼做才能讓它在每次「for num in range（0,15）：」循環中運行最後的嵌套for循環？

import pandas as pd 

symbol = 0 
for num in range(symbol,1): 
    page_counter =0 
    right = 1 
    down = 0 
    for num in range(0,15): 
     page = pd.read_html('https://www.google.com/finance/historical?q=a&startdate=Jan+1%2C+2005&enddate=Mar+2%2C+2017&num=200&ei=Aom4WPizNcWO2AaSnZ3YBg'+ str(page_counter), attrs = {'class': 'gf-table'}, header=0) 

     for df in page: 
      for num in range(down,200): 
       open_data = df.at[down, 'Open'] 
       high_data = df.at[down, 'High'] 
       low_data = df.at[down, 'Low'] 
       close_data = df.at[down, 'Close'] 
       #volume_data = df.at[down, 'Volume'] 

       print(open_data) 

       down += 1 
     page_counter += 200 
     print(page_counter) 
     symbol += 1 

P.S.我知道我的代碼現在有點笨拙，這只是我的一個快速想法。

Answer 1

第一運行向下= 200，以便該環路不滿足for num in range(down,200):範圍條件後向下聲明= 0內for num in range(0,15):

。

import pandas as pd 

symbol = 0 
for num in range(symbol,1): 
    page_counter =0 
    right = 1 
    for num in range(0,15): 
     down = 0 
     page = pd.read_html('https://www.google.com/finance/historical?q=a&startdate=Jan+1%2C+2005&enddate=Mar+2%2C+2017&num=200&ei=Aom4WPizNcWO2AaSnZ3YBg'+ str(page_counter), attrs = {'class': 'gf-table'}, header=0) 

     for df in page: 
      for num in range(down,200): 
       open_data = df.at[down, 'Open'] 
       high_data = df.at[down, 'High'] 
       low_data = df.at[down, 'Low'] 
       close_data = df.at[down, 'Close'] 
       #volume_data = df.at[down, 'Volume'] 

       print(open_data) 

       down += 1 
     page_counter += 200 
     print(page_counter) 
     symbol += 1