在整篇文章中搜索用户输入

Question

出于某种原因，我无法返回用户输入在文章中出现的次数。这是我的代码

infile = open ("the path to the file...blah blah")
count = 0 
for line in infile:
    user = input("please enter a search term or click x to exist: " )
    if user in line:
        count = count + 1   
        print("your input appears",count "times")
else:
    print("invalid")

infile.close()

Answer 1

由于多种原因，您的上述计划有误。首先，正如评论中提到的那样，您必须在打印count之后使用逗号或将其设为str(count)并在打印时添加到字符串中。从逻辑上讲，您的程序错误，因为您的计数变量仅在每行打印输出之前附加一次。您需要的是在总计数后打印它。

尝试这个简单的解决方案。

infile = open ("your_file")
count = 0
lines = infile.readlines()
lines = [line.strip().split() for line in lines]
user = input("please enter a search term or click x to exist: " )

for line in lines:
    if user in line:
        count += line.count(user)

print("your input appears " + str(count) + " times")

infile.close()

这适用于您的场景。