将行错误地添加到txt文件中

Question

出于某种原因，当以“ a”模式将字符串写入文件时，必要的（条件）字符串将被添加125次。尽管显然一个条目对我来说已经足够了。而且，如果您分别以“ w”模式开始添加，则循环将每次仅将最后一个选中的行添加到文件，同时清除前一个。如何通过“ a”模式修复附加内容？

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

您以'for'周期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='\033[96m', endcolor='\033[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，每次打开文件时它都会覆盖文件内容，因此您只有一条记录，因为它不仅创建了，而且删除了124条旧记录