Question

我从头开始学习Python，因为我没有太多的编码背景。在这个特定的练习中，我的任务是获取一个文本文件，删除空格和逗号，然后将其打印为七条单独的行（我已经完成了）。现在，我完成了任务，我需要显示真实，在每行上的单个int之前增加时间，同时还在读取空行空白的行中添加一天。＆＃39;

我尝试了几种方法，似乎无法同时发生这两个标准。这是我写的代码：

from datetime import datetime
from datetime import timedelta

with open("C:\Users\curnutte\Desktop\Assignment\Python Scripts\Python example\RandomFile.txt", "r") as inp:
    with open("C:\Users\curnutte\Desktop\Assignment\Python Scripts\Python example\RandomFileOutput.txt", "w") as outp:

    clock = datetime.now()

    for line in inp.readlines():
        total = 0
        line = line.strip()
        parts = line.split(",")
        for part in parts:

            try:
                num = int(part)
                total += num

            except ValueError:
                total = (" ".join(parts))
                break

    #for line in inp:

    if total == int:
        total_time = clock + timedelta(seconds = 1)
        print (clock + timedelta (seconds = 1))
    else:
        total_time = clock + timedelta(days = 1)
        print (clock + timedelta (days = 1))

    outp.write("%s: " % total_time)

    outp.write('{}\n'.format(total))

这是＆＃39; RandomFile：＆＃39;

1,2
2,3
3,4
4,5
blank,blank
5,6
6,7

使用我提供的代码，这里是＆＃39; RandomFileOutput＆＃39;我收到了：

2016-06-28 13：47：56.106000：13

直到我添加了最后一个if，else语句，我收到了输出：

2016-06-28 13:51:19.709000: 3
2016-06-28 13:51:19.709000: 5
2016-06-28 13:51:19.709000: 7
2016-06-28 13:51:19.709000: 9
2016-06-28 13:51:19.709000: blank blank
2016-06-28 13:51:19.709000: 11
2016-06-28 13:51:19.709000: 13

有人能说清楚我做错了什么吗？

Answer 1

我认为你的缩进是错的，你应该检查总数的类型，而不是总数== int：

from datetime import datetime
from datetime import timedelta

with open("RandomFile.txt", "r") as inp:
    with open("RandomFileOutput.txt", "w") as outp:

        clock = datetime.now()

        for i, line in enumerate(inp.readlines()):
            total = 0
            line = line.strip()
#             print(line)
            parts = line.split(",")
            for part in parts:

                try:
                    num = int(part)
                    total += num

                except ValueError:
                    total = (" ".join(parts))
                    break

            #for line in inp:
            print(type(total))
            if type(total) == int:
                total_time = clock + timedelta(seconds = 1)
                print (clock + timedelta(seconds = 1))
            else:
                total_time = clock + timedelta(days = 1)
                print (clock + timedelta(days = 1))
            outp.write("%s: " % total_time)

            outp.write('{}\n'.format(total))

打印：

<class 'int'>
2016-06-28 16:12:11.967791
<class 'int'>
2016-06-28 16:12:11.967791
<class 'int'>
2016-06-28 16:12:11.967791
<class 'int'>
2016-06-28 16:12:11.967791
<class 'str'>
2016-06-29 16:12:10.967791
<class 'int'>
2016-06-28 16:12:11.967791
<class 'int'>
2016-06-28 16:12:11.967791

If Else语句的问题

1 个答案: