The following code to the while statement for statement instead, where write wrong? Why the while statement execution no problem, for statement executes, data is not saved?

 
Try: 
# the current page is less than the total page number cycle continue to 
While the int (page_active) & lt; Page_num + 1: 
The items=get_data () 
Save_data (items) 
If page_active==page_num: 
Break 
Next_page () 
Page_active=WAIT until (EC. Presence_of_element_located (
(By CSS_SELECTOR, '# video - the list & gt; Div. Page - wrap & gt; Div & gt; Ul & gt; Li. Page - item. The active '))). The text 
# # instead for statement 
# for num in range (page_num) : 
# items=get_data () 
# save_data (items) 
# next_page () 
Finally: 
The quit () 
The book. The save (' video information list. XLSX) 

A custom function

 
Def get_data () : 
"" "
Get the name of the video in the web page, video address, description, viewed, number of barrage, release time 
: return: the name of the video, video address, description, viewed, number of barrage, release time 
"" "
Print (' began to get the data ') 
# for the content of the video page. Page_source familiar with 
HTML=the page_source 
# regular expression must use r 'to set expression string 
The pattern=re.com running (
R '& lt; Li. *?  . *?" Icon - playtime & gt;"  (. *?)  . *?" Icon - the subtitle "& gt;  (. *?)  . *?" Icon - date & gt;"  (. *?)  . *?  '
Re. S) 
The items=re. The.findall (pattern, HTML) 
For the item in the items: 
Yield [
The item [0], 
The item [1], 
The item [2], 
The item [3], 
The item [4], 
The item [5] 
] 


Def save_data (items) : 
"" "
Save the video information 
: param items: video information generator 
: return: 
"" "
Print (' began to save the data ') 
For the item in the items: 
# into global variables, save the data down 
Global n 
For j in range (len (item) : 
Sheet. Write (n, j, item [j]) 
Print (n, j) 
N=n + 1 

CodePudding user response:

Len (item)

CodePudding user response:

reference 1st floor sjhbirds response:

len (item)

didn't understand