我正在做一个脚本,我想改变一些句子的顺序
n = 4
l=[]
t = []
for i in range(n):
line = input()
if i%2 == 0:
t += line
else:
l+=line
for i in range(len(l)):
print(l[i])
for i in range(len(t)):
print(t[i])
我按顺序输入以下行:
I like Trains
I like apples
I like pears
I like bananas
我想要它打印:
I like apples,
I like bananas,
I like Trains,
I like pears,
但它不打印它,它打印单独的字母。
您正在扩展列表,而不是追加。扩展将字符串中的单独元素添加到列表中。
而不是+=
,使用list.append()
:
t.append(line)
和
l.append(line)
除此之外,您可以大大简化您的打印循环;你可以直接遍历列表并获取值,不需要使用range()
生成索引:
for line in l:
print(line)
for line in t:
print(line)
您可以将整个列表传递给print()
并告诉它使用换行符打印每个值:
print(*l, sep='\n')
print(*t, sep='\n')
n = 4
l = []
t = []
for i in range(n):
line = input(">")
if i % 2 == 0:
t.append(line)
else:
l.append(line)
for i in range(len(l)):
print(l[i])
for i in range(len(t)):
print(t[i])
产量
>I like apple
>I like train
>I like beer
>I like bear
I like train
I like bear
I like apple
I like beer
>>>
n = 4
l = []
t = []
for i in range(n):
line = input(">")
if i % 2 == 0:
t.append(line)
else:
l.append(line)
print(*l, sep="\n")
print(*t, sep="\n")
产量
>1 line
>2 line
>3 line
>4 line
2 line
4 line
1 line
3 line
>>>