Question

我正在从文件中切出一大块文本。现在，块存储在变量中。像，

str="from child hood days i liked sweet and savoir. in the early days my mother cooked great deal of sweet meats in home and all my relatives had a nice taste for good sweets. even in remote assam town we thronged miles to procure good sweets. and my sweet eating habit was pretty known. in my childhood i could had as good as 30 to 40 rosgollas at one seating after a full course of lunch. though i was not among the best in my family."

但我现在想以与写作

相同的方式阅读每一行

for line in file:
     print line

我的问题是我们可以这样做，还是应该回写文件再进行操作？如果有人可以帮助你。

此致 Subhabrata Banerjee 古尔冈印度

Answer 1

将字符串转储到StringIO.StringIO，然后您可以对其使用文件操作。请注意，您的示例文本只有一行。

Answer 2

for line in str.split('\n'):
    doit(line)

虽然这不是读取懒洋洋地解析。对于真的大块读取懒惰地解析：

for match in re.finditer(r'(.*)\n', str):
    print match.group(1)

Answer 3

也许使用字符串标记生成器来处理“大字符串”，将其拆分为“较小的字符串”。这将使该过程更容易。顺便问一下，你在编码什么？

从大字符串读取行

3 个答案: