请问怎么使每行五个数呀

用换行符就行，每写入五个就写入一个“\r\n”

好熟悉的提。好像以前基础的时候玩过

第一个我用java写了，博客

import random
line = []
for i in range(20):
    num = random.random()
    line.append(num)
    if (i+1) % 5 == 0:
        tmp = [str(i) for i in line]
        with open('output.txt','a+') as f:
            f.write(tmp+'\n')
        num = []