📄 footnode.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//CN"><!--Converted with LaTeX2HTML 2002-2-1 (1.71)original version by: Nikos Drakos, CBLU, University of Leeds* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan* with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --><HTML><HEAD><TITLE>Footnotes</TITLE><META NAME="description" CONTENT="Footnotes"><META NAME="keywords" CONTENT="tut"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><META NAME="Generator" CONTENT="LaTeX2HTML v2002-2-1"><META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"><LINK REL="STYLESHEET" HREF="style.css"><LINK REL="previous" HREF="node17.html"><LINK REL="up" HREF="tut.html"></HEAD><BODY ><DL><DT><A NAME="foot132">... prompt.</A><A HREF="node4.html#tex2html3"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>
A problem with the GNU Readline package may prevent this.
<PRE>..............................</PRE></DD><DT><A NAME="foot135">...DEL）就会取消当前输入，回到主命令行。</A><A HREF="node4.html#tex2html4"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>GNU readline
包的一个错误可能会造成无法正常工作。<PRE>..............................</PRE></DD><DT><A NAME="foot2358">... object).</A><A HREF="node6.html#tex2html6"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>
Actually, <I>call by object reference</I> would be a better
description, since if a mutable object is passed, the caller
will see any changes the callee makes to it (items
inserted into a list).
<PRE>..............................</PRE></DD><DT><A NAME="foot533">...函数引用的实际参数在函数调用时引入局部符号表，因此，实参总是传值调用（这里的值总是一个对象引用，而不是该对象的值）。</A><A HREF="node6.html#tex2html7"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>事实上，称之为调用对象的引用更合适。因为一个可变对象传递进来后，调用者可以看到被调用对象的任何修改（如在链表中插入一个新的子项）。<PRE>..............................</PRE></DD><DT><A NAME="foot951">... etc.</A><A HREF="node7.html#tex2html19"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>
The rules for comparing objects of different types should
not be relied upon; they may change in a future version of
the language.
<PRE>..............................</PRE></DD><DT><A NAME="foot952">...需要注意的是不同类型的对象比较是合法的。输出结果是确定而非任意的：类型按它们的名字排序。因而，一个链表（list）总是小于一个字符串（string），一个字符串（string）总是小于一个元组（tuple）等等。数值类型比较时会统一它们的数据类型，所以0等于0.0，等等。</A><A HREF="node7.html#tex2html20"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>
不同类型对象的比较规则不依赖于此，它们有可能会在Python语言的后继版本中改变。
<PRE>..............................</PRE></DD><DT><A NAME="foot981">... somewhere.</A><A HREF="node8.html#tex2html21"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>
In fact function definitions are also `statements' that are
`executed'; the execution enters the function name in the
module's global symbol table.
<PRE>..............................</PRE></DD><DT><A NAME="foot983">...第一次导入时执行一次。</A><A HREF="node8.html#tex2html22"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>
事实上函数定义既是“声明”又是“可执行体”；执行体由函数在模块全局语义表中的命名导入。（In fact function definitions are also `statements' that are `executed'; the execution enters the function name in the module's global symbol table. ）
<PRE>..............................</PRE></DD><DT><A NAME="foot2455">... namespace!</A><A HREF="node11.html#tex2html23"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>
Except for one thing. Module objects have a secret read-only
attribute called __dict__ which returns the dictionary
used to implement the module's namespace; the name
__dict__ is an attribute but not a global name.
Obviously, using this violates the abstraction of namespace
implementation, and should be restricted to things like
post-mortem debuggers.
<PRE>..............................</PRE></DD><DT><A NAME="foot1679">... 是它的一个属性。因此，模块的属性和模块中的全局命名有直接的映射关系：它们共享同一命名空间！</A><A HREF="node11.html#tex2html24"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD> 有一个例外。模块对象有一个隐秘的只读对象，名为 __dict__，它返回用于实现模块命名空间的字典，命名 __dict__ 是一个属性而非全局命名。显然，使用它违反了命名空间实现的抽象原则，应该被严格限制于调试中。<PRE>..............................</PRE></DD><DT><A NAME="foot2549">... file:</A><A HREF="node14.html#tex2html29"><SUP>footnote.gif,png,jpg</SUP></A></DT><DD>
Python will execute the contents of a file identified by the
PYTHONSTARTUP environment variable when you start an
interactive interpreter.<PRE>..............................</PRE></DD></DL></BODY></HTML>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -