如何根据条件逐行读取文件并将其写入文件。 在python中

Question

我想逐行读取文件，首先对第一个值执行一些操作，然后再次从文件中读取第二个值，想要执行一些操作，例如，如果我有一个文件，其值是Vik John Lisa

我想一一阅读并传递到sql server，然后根据性别在文件中写入输出（年龄）。如果以Vik开头的名字是男性，则在文件male.txt中输入他的年龄，否则在female.txt中。这个

代码 ：

with open('C:\code\out.txt', 'r') as content_file:
  for line in content_file:
    cs=pyodbc.connect('Trusted_Connection=yes', driver = '{SQL Server}',server = '.', database = 'Test')
    tablequery="select Age,Gender from dbo.AuditSource where Name='" + line+"'";
    cursor = cs.cursor()
    cursor.execute(tablequery)
    rows = cursor.fetchall()
    for row in rows:
        age=row.Age
        Gen=row.Gender
        print(age)
        if Gen=='M':
            with open('C:\code\male.txt', 'a') as f:
                f.write(age) #here getting error not able toe write var value

        else:
            with open('C:\code\female.txt', 'a') as f:
                f.write(age) #here getting error not able toe write var value

Answer 1

这是您要的代码。

search = open("some.txt","r") #opens and read file        
for line in search:
   new  = line[0]
   if new == "V":
      file = open("edit.txt","w")
      file.write(line)