错误地将一行添加到 txt 文件

Question

出于某种原因，在 "a" 模式下将字符串写入文件时，必要的（条件）字符串被添加了 125 次。虽然一个条目对我来说显然已经足够了。而如果你在 "w" 模式下开始添加，那么，循环将每次只将最后检查的行添加到文件中，同时清除前一个。如何通过 "a" 模式修复添加？

workbook = open('base.txt')
print('Starting...')

count = 0
for line in workbook:
    number = (str(line)[0:11])


    with open(r"base.txt", "r") as file:
        lines = file.readlines()
    del lines[0]
    with open(r"base.txt", "w") as file:
        file.writelines(lines)

    for x in range(img.size[0]):
        for y in range(img.size[1]):
            pix = rgb.getpixel((x, y))
        if pix in color:

           with open('checkbase.txt', 'a') as filehandle:
                filehandle.write(line) #125 times add

    print(result)

Answer 1

您在 'for' 循环中添加了文件追加操作。您的代码应如下所示

for x in range(img.size[0]):
    for y in range(img.size[1]):
        pix = rgb.getpixel((x, y))
    if pix in color:
        result = '{cyan}YEAH{endcolor}'.format(cyan='3[96m', endcolor='3[0m')

with open('checkbase.txt', 'a') as filehandle:
    filehandle.write(line)  # appending file should now happen only once for every line

使用'w'模式打开文件时，每次打开文件都会覆盖文件内容，所以你只有一条记录，因为它不仅创建，还删除了124条旧记录

错误地将一行添加到 txt 文件

Incorrectly adding a line to a txt file

file

add

python-3.x