The HTML code is as follows, why the if it can't print output, this code has been IndexError error, what is the good way to avoid it


# 30 people in the same boat, overload, need 15 people get out,
# so people lining up, and the position of the line to their number,
# number off, starting from 1, the number to 9 people get out,
# so circulates, until the ship only 15 people, ask what are the number of people getting off?

Life_num=(a + 1 for a in range (30)] # generated number sequence
# print (life_num)
J=1
While True:
If len (life_num) & lt;=15:
Print (life_num)
Break
The else:
For n in the range (len (life_num)) :
If j==9:
Print (' % a ship! '% life_num [n])
Life_num. Remove (life_num [n])
J=2
The else:
J +=1

CodePudding user response:

 life_num=(a + 1 for a in range (30)] # generated number sequence 
# print (life_num) 
J=1 
While True: 
If len (life_num) & lt;=15: 
Print (life_num) 
Break 
The else: 
For n in the range (len (life_num)) : 
If j==9: 
Try: 
If len (life_num) & lt;=15: 
Break 
Print (' % a ship! '% life_num [n]) 
Life_num. Remove (life_num [n]) 
J=2 
Except the Exception as e: 
Pass 

The else: 
J +=1