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梧桐叶永远

#1 Created at ... [Delete] [Delete and Lock User]

StringIO到底是什么呢？

StringIO().write('hello') 5

为什么会有个5出来呢，前面没有讲到这个啊

匿名sina网友V

#2 Created at ... [Delete] [Delete and Lock User]

In [224]: StringIO? Init signature: StringIO(initial_value='', newline='\n') Docstring: Text I/O implementation using an in-memory buffer.

The initial_value argument sets the value of object. The newline argument is like the one of TextIOWrapper's constructor. Type: type

In [225]: StringIO.write? Signature: StringIO.write(self, s, /) Docstring: Write string to file.

Returns the number of characters written, which is always equal to the length of the string. Type: method_descriptor

哈哈，听说题主打算放弃，去学别的课程了? 学到半截了都能放弃，你也算条汉子， 按这个节奏，不出意外的话，不久的将来能在php论坛遇见你。

一只成长控

#3 Created at ... [Delete] [Delete and Lock User]

确实是写进去了 只不过返回的是写进去的字符数量 hello 有5个字母

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