Python 在文件的第8行写入文本

我想在几个文件中写一条评论，总是在第8行。我尝试了这个，但它只在第一个文件中写入：

# insert comment to explain change
comment = now+":  Legal Litres changed to "+legalLitresTxt+"\n" 
commentCounter = 0

try:
    for i in mdcArray:


        line = ""

        Qqfile = glob.glob("/shares/web/vm3618/optiload/prog/MDC"+i+"/*/"+hexFile) 
        outFile = Qqfile[0]+".new"
        print i

        #read /shares/web/vm3618/optiload/prog/i/*/Hexfile
        for files in Qqfile:
            with open(files) as readFile:
                    content = readFile.readlines()

                    writer = open(outFile, 'w')

                    for line in content:
                       commentCounter += 1

                       if commentCounter == 8:
                           writer.write(comment)

---

有人能解释一下为什么它只对数组中的第一个文件执行此操作吗？

您需要再次从

0

开始。 移动：

在前面

for line in content:

i、 e

您的代码应该是这样的（可能会有更多的改进。这里不是为了教育目的而做的）：

for line in content:

commentCounter = 0
for line in content:

comment = now+":  Legal Litres changed to "+legalLitresTxt+"\n" 
try:
    for i in mdcArray:
        line = ""
        Qqfile = glob.glob("/shares/web/vm3618/optiload/prog/MDC"+i+"/*/"+hexFile) 
        outFile = Qqfile[0]+".new"
        print i
        #read /shares/web/vm3618/optiload/prog/i/*/Hexfile
        for files in Qqfile:
            with open(files) as readFile:
                    content = readFile.readlines()
                    writer = open(outFile, 'w')
                    commentCounter = 0
                    for line in content:
                        commentCounter += 1
                        if commentCounter == 8:
                            writer.write(comment)