如何根据行号从文件中选择特定行？

Question

I have a class which takes in the name of the module to be tested. Then the class scans though a master text file and finds the files that need to be compiled based on the module selected.

This is what I have so far:

class Module():

    def __init__ (self,name):
        self.name = name
        module_start_line = []

        with open('master_module_list.txt', 'r') as master_list:
            for start_no, master_lines in enumerate(master_list):
                if re.search('module ' + self.name, master_lines):
                    module_start_line.append(start_no)
                    print(module_start_line)

module eeprom_top
../../../project_ip/eeprom_ip/src/eeprom_pkg.vhd
../../../project_ip/eeprom_ip/src/eeprom_top.vhd
module fan_ip
../../../project_ip/fan_ip/src/fan_pkg.vhd
../../../project_ip/fan_ip/src/fan_pkg.vhd
module backplane
../../../project_ip/backplane_ip/src/backplane.vhd

So if the user types in "fan_ip" then I want to copy the two lines after module fan_ip from the text file.

I am fairly new to python so feel free to correct me on my previous code. I am using python 3.4.

Answer 1

您可以使用readline方法一次读取一行，并记录所读取的内容以确定每一行的行号。