出一到Python题

以下是一道Python题示例：
引用:假设程序输入： New to Python or choosing between Python 2 and Python 3? Read Python 2 or Python 3. 则输出应该是： 2:2 3.:1 3?:1 New:1 Python:5 Read:1 and:1 between:1 choosing:1 or:2 to:1 [^1]

这道题的思路是将输入的字符串拆分成一个个单词，然后统计每个单词出现的次数。这可以通过Python中的字典来实现。具体实现方法如下：

s = 'New to Python or choosing between Python 2 and Python 3? Read Python 2 or Python 3.'
words = s.split()   # 将字符串拆分成单词
d = {}
for word in words:
    d[word] = d.get(word, 0) + 1   # 统计单词出现次数

for key, value in d.items():
    print(f"{key}:{value}", end=' ')

输出结果为：`New:1 to:1 Python:5 or:2 choosing:1 between:1 2:2 and:1 3?:1 Read:1 3.:1`