Question

继承我的代码：

borders.addNewBottom().setVal(STBorder.THICK);

每当我输入任何数字时，它总是打印相同的行。

Answer 1

Python有一个方便的linecache库来处理你的情况：

import linecache

def option_a():
    line_number = int(input("Enter a line number: "))
    line = linecache.getline("firesideFixtures.txt", line_number)
    print(line)

Answer 2

readlines（）的参数没有指定从文件中读取哪一行。尝试这样的事情：

def option_a():
    fixchoice = int(input("Enter: "))

    with open("firesideFixtures.txt", "r") as file:
        for i, line in enumerate(file, 1):
            if i == fixchoice:
                print(line)
                break # Or return if you don't want to do anything after the loop

option_a()

给定行号，如何从文件中读取它

2 个答案: