Python 如何颠倒句子中的位置？

data='这是pos:2，我将与pos:10进行交换'

代码如下

val = [(i,v) for i,v in enumerate(data.split()) if ':' in v]
val
#[(2, 'pos:2'), (10, 'pos:10')]
x = list(zip(*val))
x
#[(2, 10), ('pos:2', 'pos:10')]

我需要倒转2,10到10,2，然后插入到句子后面

预料之外

---

data='这是pos:10，我将与pos:2进行交换'

根据您的代码，如果您只想交换两个单词，您可以执行以下操作：

data = 'This is pos:2 and i am going to interchange with pos:10'

val = [(i,v) for i,v in enumerate(data.split()) if ':' in v]
x = list(zip(*val))

new_data = ''
for item in data.split(" "):
    if ":" in item:
        num2select = None
        if str(x[0][0])==item.split(":")[1]:
            num2select = x[0][1]
        else:
            num2select = x[0][0]
        new_data+=item.split(":")[0] + ":" + str(num2select) + " "
    else:
        new_data+=item+" "

print(new_data)

输出：

This is pos:10 and i am going to interchange with pos:2

This is pos:10 and i am going to interchange with pos:2

This is pos:10 and i am going to interchange with pos:2

这个怎么样

输出：

This is pos:10 and i am going to interchange with pos:2

This is pos:10 and i am going to interchange with pos:2

This is pos:10 and i am going to interchange with pos:2

---

用“替换”怎么样

data = 'This is pos:2 and i am going to interchange with pos:10'

st1 = 'pos:2'
st2 = 'pos:10'
st_temp = 'pos:Temp'

data1 = data.replace(st1,st_temp).replace(st2,st1).replace(st_temp,st2)

print(data1)

输出：

This is pos:10 and i am going to interchange with pos:2

This is pos:10 and i am going to interchange with pos:2

This is pos:10 and i am going to interchange with pos:2