Python零基础学习代码实践 —— 提取字符串里面的单词数
str = input() str1 = str.strip() index = 0 count = 0 while index < len(str1): while str1[index] != " ": index += 1 if index == len(str1): break count += 1 if index == len(str1): break while str1[index] == " ": index += 1 print(count) 执行结果 C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\python.exe C:/Users/Administrator/PycharmProjects/untitled/day005/提取字符转里面的单词数.py 4 Process finished with exit code 0