Python中的隨機函數

Question

如何使用隨機函數（在Python中）從txt列表中選擇一個字符串？

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我想隨機從列表：

import random 
import sys 
filename = sys.argv[1] 
f = open(filename) 
f.close() 
print random.choice(f) 

是這段代碼好嗎？

Answer 1

> import random 
> list_of_strings = open(sys.argv[1]).readlines() 
> randomly_chosen_string = random.choice(list_of_strings) 
> help(random.choice) 
Help on method choice in module random: 

choice(self, seq) method of random.Random instance 
Choose a random element from a non-empty sequence. 

Answer 2

import random 

file = open("file.txt", "r") 
list = file.readlines() 
def getline(): 
    return list[random.randint(0,(len(list) - 1))] 

getline()