谁能发现这个问题?每次我的索引都为负数,所以它总是打印“Before Grade 1”。我尝试做一些正则表达式,但我仍然不知道如何真正实现它
import re
from cs50 import get_string
words = 1
letters = 0
sentences = 0
st = get_string("Text: ")
t = len(st)
regex = r'\w+'
output = re.findall(regex,st)
for i in range(t):
if st.isalpha():
letters += 1
if st.isspace():
words += 1
if st[i] == '.' or st[i] == '!' or st[i] == '?':
sentences += 1
L = (letters / words * 100)
S = (sentences / words * 100)
index = 0.0588 * L - 0.296 * S - 15.8
roundedIndex = round(index)
if roundedIndex < 1:
print("Before Grade 1")
if roundedIndex >= 16:
print("Grade 16+")
else:
print(roundedIndex)
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