Question

我想得到以下输出：

T1: j2 
T2: j4
T3: j3
T1: j7
T2: j
T3: j6
T1: j5

我已经用for循环尝试过了，但是我做不到。这是我的代码：

import random

team = ['t1','t2','t3']
task = ["j","j2","j3","j4","j5","j6","j7"]

print (task)
s_task = random.sample(task,len(task))
print (s_task)

for itm in team:
    for itm1 in s_task:
        print(itm,itm1)

T1: j2 
T2: j4
T3: j3
T1: j7
T2: j
T3: j6
T1: j5

Answer 1

您似乎需要itertools.cycle和random.choice

例如：

import random
from itertools import cycle
team = ['t1','t2','t3']
task = ["j","j2","j3","j4","j5","j6","j7"]


team = cycle(team)
for _ in range(len(task)):
    print("{}: {}".format(next(team), random.choice(task)))

输出：

t1: j5
t2: j5
t3: j
t1: j7
t2: j6
t3: j7
t1: j3

Answer 2

如果仅需要格式化输出的方式，则可以使用：

Formatted string literal又称f字符串（适用于Python 3.6或更高版本）

for itm in team:
    for itm1 in s_task:
        print(f"{itm}: {itm1}")

详细了解f字符串here。

如果您的Python3低于Python3.6，请坚持使用str.format()并使用

print("{}: {}".format(itm, itm1))

Answer 3

您可以使用string.format()：

import random

team = ['t1','t2','t3']
task = ["j","j2","j3","j4","j5","j6","j7"]

print (task)
s_task = random.sample(task,len(task))
print (s_task)

for itm in team:
    for itm1 in s_task:
        print("{}: {}".format(itm,itm1))

这应该以您所需的格式打印

Answer 4

使用串联，

print(itm, ": ", itm1)

使用旧字符串格式，

print("%s: %s"%(itm, itm1))

使用新的字符串格式，

print("{0}: {1}".format(itm, itm1))


import random

team = ['t1','t2','t3']
task = ["j","j2","j3","j4","j5","j6","j7"]

print (task)
s_task = random.sample(task,len(task))
print (s_task)

for itm in team:
    for itm1 in s_task:
        print(itm, ": ", itm1)

T1: j2 
T2: j4
T3: j3
T1: j7
T2: j
T3: j6
T1: j5

如何格式化随机采样的列表元素？

4 个答案: