如何使用JES(学生的Python)计算文件中的字符数

Question

如何让python读取文本文件并返回lines，characters，vowels，consonants，lowercase letters和uppercase letters的数量

编写一个接受文件名作为命令行参数的程序。 (可以假定输入文件将是纯文本文件。 如果用户忘记包含命令行参数，则程序应退出并显示相应的错误消息。

否则，程序应打印出：

• 文件中的行数
• 文件中的字符数
• 文件中的元音数(出于此赋值的目的，将"y"视为辅音。
• 文件中的辅音数
• 文件中小写字母的数量
• 文件中大写字母的数量

我不知所措。我该怎么做？就像我很确定有一些命令可以做到这一点，但我不知道它们是什么。感谢您的帮助:)

编辑这是我的最后一个程序，它很完美。谢谢大家的帮助。特别感谢本塔耶:)

import sys
def text(): 
countV = 0 
countC = 0 
lines = 0 
countU = 0
countL = 0
characters = 0 
vowels = set("AEIOUaeiou") 
cons = set("bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ")    
upper = set("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
lower = set("abcdefghijklmnopqrstuvwxyz")
with open(sys.argv[1]) as file:
fileLines = file.readlines()
for line in fileLines: 
lines = lines + 1 
characters = characters + len(line) 
for char in line: 
if char in vowels: 
countV = countV + 1 
elif char in cons: 
countC = countC + 1
for char in line:
if char in upper:
countU = countU + 1
elif char in lower:
countL = countL + 1
print("Lines: " + str(lines)) 
print("Characters: " + str(characters)) 
print("Vowels: " + str(countV)) 
print("Consonants: " + str(countC))
print("Lowercase: " + str(countL))
print("Uppercase: " + str(countU))
text()

Answer 1

这解决了您的问题，您现在可以将其构建为大写/小写

• 使用sys.argv[0]捕获参数(需要导入sys)
• 然后使用file.readlines()获取行数组(作为字符串)

法典

import sys
countV = 0 
countC = 0 
lines = 0 
characters = 0 
vowels = set("AEIOUaeiou") 
cons = set("bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ") 
with open(sys.argv[0]) as file:
fileLines = file.readlines()
for line in fileLines: 
lines = lines + 1 
characters = characters + len(line) 
for char in line: 
if char in vowels: 
countV = countV + 1 
elif char in cons: 
countC = countC + 1
print("Lines: " + str(lines)) 
print("Characters: " + str(characters)) 
print (countV) 
print (countC)

你这样称呼它

python test.py yourFile.txt 

完整答案供参考

import sys
vowels = "aeiou"
cons = "bcdfghjklmnpqrstvwxyz"
with open(sys.argv[0]) as file:
fileLines = file.readlines()
countVowels = 0 
countConsonants = 0 
countUpperCase = 0 
countLowerCase = 0 
countLines = 0 
countCharacters = 0 
countNonLetters = 0 
for line in fileLines: 
countLines += 1 
countCharacters = countCharacters + len(line) 
for char in line: 
if char.isalpha():
if char.lower() in vowels: 
countVowels += 1 
elif char.lower() in cons: 
countConsonants += 1
if char.isupper():
countUpperCase += 1
elif char.islower():
countLowerCase += 1
else:
countNonLetters += 1
print("Lines: " + str(countLines)) 
print("Characters: " + str(countCharacters)) 
print("Vowels: " + str(countVowels)) 
print("Consonants: " + str(countConsonants)) 
print("Upper case: " + str(countUpperCase)) 
print("Lower case: " + str(countLowerCase)) 
print("Non letters: " + str(countNonLetters))