编程：输入一段英文文本，统计该文本中单词的出现次数。比如"How are you.how are you"的统计结果是{"how":2,"are":2,"you":2}，要求用函数调用的方法实现。
举一反三
- 函数left(‘How are you’,3)的结果为( ) A: you B: are C: How D: How are you
- A: Hello, Judy, thank you for your waiting, _____________ ?B: Not bad, ______________?A: Good. A: How are you, How do you do B: How are you, How are you C: How do you do, How do you do D: How do you do, How are you
- “你穿多大号的”的正确英文表达是（ ）。 A: How many are you? B: How large are you? C: What size are you? D: How old are you?
- 2、 How would you feel if you couldn’t play smartphone for a week?
- Given an English text, write a function count_len to count the frequencies of words of given length. The test string is 'Life is short, you need Python', count_len(4) will return 2. 定义函数count_len统计输入的英文文本中参数给定长度的单词出现的次数。 输入：'Life is short, you need Python.' count_len(5)输出：1 count_len(4)输出：2