這個素數輸出有什麼問題？

Question

from math import sqrt 

for num in range(2,100) : 
    flag = True 
    for sub in range(2,int(sqrt(num))+1) : 
     if num % sub ==0 : 
      flag = False 
      break 
     print num , 

我是一個「品牌」新手在Python中，我嘗試代碼輸出從2到100的素數，我 遇到了一些問題，請大家幫我^^

Answer 1

for sub in range(2,int(sqrt(num))+1) : 
    if num % sub ==0 : 
     flag = False 
     break 
    print num , # <<-- this is inside the for loop and will be printed every iteration