count={} a=input('aaa') b=a.split() for i in b : count[i]=count.get(i,0)+1 print(count)
时间: 2024-03-07 11:53:19 浏览: 19
这是一段 Python 代码,它的功能是对输入的字符串进行分词并统计每个词出现的次数。具体解释如下:
1. `count = {}`:定义一个空的字典,用于保存每个词出现的次数。
2. `a = input('aaa')`:从标准输入读取一个字符串,并将其赋值给变量 a。
3. `b = a.split()`:将变量 a 中的字符串按照空格分割成一个列表,并将其赋值给变量 b。
4. `for i in b:`:对列表 b 中的每个元素进行迭代,每次迭代将元素赋值给变量 i。
5. `count[i] = count.get(i, 0) + 1`:使用字典的 get 方法获取字典中键为 i 的值,如果键不存在则返回默认值 0,然后将返回的值加 1,并将结果赋值给键为 i 的值。
6. `print(count)`:输出统计结果。
需要注意的是,代码中缺少了缩进,应该使用 4 个空格或者一个制表符进行缩进。另外,代码中的变量名不太规范,应该使用更有意义的名称。
相关问题
a = input().split('\n') b = input().split('\n') c = a.count(b) print(c)
This code takes two inputs from the user, splits them into lists using the newline character as the delimiter, counts the number of times the second list appears in the first list, and then prints that count.
However, there is an issue with the code. The count() method expects a single argument, which is the element to be counted. In this code, the second input is being passed as the argument to count(), but count() is expecting a string or other object to count within the first list. Therefore, this code will raise a TypeError.
To fix this, we need to change the way we are using count(). One way to do this is to iterate over the first list and count the number of times the second list appears as a sublist. Here's an updated version of the code that does this:
a = input().split('\n')
b = input().split('\n')
c = 0
for i in range(len(a) - len(b) + 1):
if a[i:i+len(b)] == b:
c += 1
print(c)
s = input() print(s.count("a"))
As an AI language model, I cannot run code. But I can explain what this code does.
This code prompts the user to enter a string (a sequence of characters) and stores it in the variable `s`. Then, it uses the `count()` method to count the number of times the character "a" appears in the string `s`. Finally, it prints the count of "a"s to the console.
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