7第七章：一些类似scanw()函数的输出函数.htm

curses界面编程

style='font-size:12.0pt;font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:
Tahoma;mso-bidi-font-family:Tahoma'>函数和</span></b><b><span lang=EN-US
style='font-size:12.0pt;font-family:Tahoma'>mvwscanw()</span></b><b><span
style='font-size:12.0pt;font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:
Tahoma;mso-bidi-font-family:Tahoma'>函数</span></b><b><span lang=EN-US
style='font-size:12.0pt;font-family:Tahoma'><br>
</span></b><b><span style='font-size:12.0pt;font-family:宋体;mso-ascii-font-family:
Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>（</span></b><b><span
lang=EN-US style='font-size:12.0pt;font-family:Tahoma'>wscanw() and mvwscanw()</span></b><b><span
style='font-size:12.0pt;font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:
Tahoma;mso-bidi-font-family:Tahoma'>）</span></b><b><span lang=EN-US
style='font-size:12.0pt;font-family:Tahoma'><o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-left:10.5pt;mso-para-margin-left:1.0gd'><span
style='font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;
mso-bidi-font-family:Tahoma'>这两个函数的用法和以上两个函数相似。区别在于它们从一个窗口中读取数据。所以，它们需要提供指定窗口的变量。</span><span
lang=EN-US style='font-family:Tahoma'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:10.5pt;mso-para-margin-left:1.0gd'><span
lang=EN-US style='font-family:Tahoma'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-left:10.5pt;mso-para-margin-left:1.0gd'><st1:chsdate
IsROCDate="False" IsLunarDate="False" Day="30" Month="12" Year="1899" w:st="on"><b><span
 lang=EN-US style='font-size:12.0pt;font-family:Tahoma'>7.2.3</span></b></st1:chsdate><b><span
lang=EN-US style='font-size:12.0pt;font-family:Tahoma'>. vwscanw()</span></b><b><span
style='font-size:12.0pt;font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:
Tahoma;mso-bidi-font-family:Tahoma'>函数（</span></b><b><span lang=EN-US
style='font-size:12.0pt;font-family:Tahoma'>vwscanw()</span></b><b><span
style='font-size:12.0pt;font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:
Tahoma;mso-bidi-font-family:Tahoma'>）</span></b><b><span lang=EN-US
style='font-size:12.0pt;font-family:Tahoma'><o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-left:10.5pt;mso-para-margin-left:1.0gd'><span
style='font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;
mso-bidi-font-family:Tahoma'>这个函数和</span><span lang=EN-US style='font-family:
Tahoma'>vprintf()</span><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>相似。它用于输入变量表中所对应的变量。</span><span
lang=EN-US style='font-family:Tahoma'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-family:Tahoma'><o:p>&nbsp;</o:p></span></p>

<h3><span lang=EN-US>7.3. getstr()</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>函数集（</span><span
lang=EN-US>getstr() class of functions</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>）</span></h3>

<p class=MsoNormal><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>这些函数用于从终端取得字符串。本质上，这个函数执行的结果和连续使用</span><span
lang=EN-US style='font-family:Tahoma'>getch()</span><span style='font-family:
宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:
Tahoma'>函数直到读取一个<span class=msoIns><ins cite="mailto:Simon%20Zhan"
datetime="2004-02-10T21:47">换行符</ins></span>（或文末符）的结果是一样的。当函数完成以后它会创建一个指向这个字符串的指针。</span><span
lang=EN-US style='font-family:Tahoma'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-family:Tahoma'><o:p>&nbsp;</o:p></span></p>

<h3><st1:chsdate IsROCDate="False" IsLunarDate="False" Day="30" Month="12"
Year="1899" w:st="on"><span lang=EN-US>7.4. </span><span style='font-family:
 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>一</span></st1:chsdate><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>些例子（</span><span lang=EN-US>Some examples</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>）</span></h3>

<p class=MsoNormal><b><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>例</span></b><b><span
lang=EN-US style='font-family:Tahoma'>4</span></b><b><span style='font-family:
宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:
Tahoma'>：一个简单的使用</span></b><b><span lang=EN-US style='font-family:Tahoma'>scanw()</span></b><b><span
style='font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;
mso-bidi-font-family:Tahoma'>函数的例子。</span></b><b><span lang=EN-US
style='font-family:Tahoma'><o:p></o:p></span></b></p>

<p class=MsoNormal><b><span lang=EN-US style='font-family:Tahoma'><o:p>&nbsp;</o:p></span></b></p>

<p class=MsoNormal><span class=inlinemediaobject><b><span lang=EN-US
style='font-family:Tahoma'>#include &lt;ncurses.h&gt;<span style='mso-tab-count:
3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>/*
ncurses.h </span></b></span><span class=inlinemediaobject><b><span
style='font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;
mso-bidi-font-family:Tahoma'>已经包含了</span></b></span><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'>stdio.h
*/<span style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></b></span></p>

<p class=MsoNormal><span class=inlinemediaobject><b><span lang=EN-US
style='font-family:Tahoma'>#include &lt;string.h&gt; <o:p></o:p></span></b></span></p>

<p class=MsoNormal><span class=inlinemediaobject><b><span lang=EN-US
style='font-family:Tahoma'><span style='mso-spacerun:yes'>&nbsp;</span><o:p></o:p></span></b></span></p>

<p class=MsoNormal><span class=inlinemediaobject><b><span lang=EN-US
style='font-family:Tahoma'>int main()<o:p></o:p></span></b></span></p>

<p class=MsoNormal><span class=inlinemediaobject><b><span lang=EN-US
style='font-family:Tahoma'>{<o:p></o:p></span></b></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>char mesg[]=&quot;Enter a string: &quot;;</span></b></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>/* </span></span><span
class=inlinemediaobject><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>将要被打印的字符串信息</span></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'> */<b><o:p></o:p></b></span></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>char str[80];<o:p></o:p></span></b></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>int row,col;<span style='mso-tab-count:
4'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></b></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>/* </span></span><span
class=inlinemediaobject><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>存储行号和列号的变量，用于指定光标位置</span></span><span
class=inlinemediaobject><span style='font-family:Tahoma'> <span lang=EN-US>*/<o:p></o:p></span></span></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>initscr();<span style='mso-tab-count:
4'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></b></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>/* </span></span><span
class=inlinemediaobject><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>进入</span></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>curses</span></span><span
class=inlinemediaobject><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>模式</span></span><span
class=inlinemediaobject><span style='font-family:Tahoma'> <span lang=EN-US>*/<o:p></o:p></span></span></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>getmaxyx(stdscr,row,col);<span
style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></b></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>/* </span></span><span
class=inlinemediaobject><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>取得</span></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>stdscr</span></span><span
class=inlinemediaobject><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>的行数和列数</span></span><span
class=inlinemediaobject><span style='font-family:Tahoma'> <span lang=EN-US>*/<b><o:p></o:p></b></span></span></span></p>

<p class=MsoNormal style='margin-left:185.35pt;mso-para-margin-left:2.0gd;
text-indent:-164.35pt;mso-char-indent-count:-15.59'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>mvprintw(row/2,(col-strlen(mesg))/2,&quot;%s&quot;,mesg);<span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><br>
</span></b></span><span class=inlinemediaobject><span lang=EN-US
style='font-family:Tahoma'>/*</span></span><span class=inlinemediaobject><span
style='font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;
mso-bidi-font-family:Tahoma'>在屏幕的正中打印字符串</span></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>mesg */<b><o:p></o:p></b></span></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><o:p>&nbsp;</o:p></span></b></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>getstr(str);<span style='mso-tab-count:
5'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></b></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>/* </span></span><span
class=inlinemediaobject><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>将指针</span></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'>str </span></span><span
class=inlinemediaobject><span style='font-family:宋体;mso-ascii-font-family:Tahoma;
mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>指向读取的字符串</span></span><span
class=inlinemediaobject><span lang=EN-US style='font-family:Tahoma'> */<b><o:p></o:p></b></span></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>mvprintw(LINES - 2, 0, &quot;You Entered:
%s&quot;, str);<o:p></o:p></span></b></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>getch();<o:p></o:p></span></b></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>endwin();<o:p></o:p></span></b></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><o:p>&nbsp;</o:p></span></b></span></p>

<p class=MsoNormal style='margin-left:21.0pt;mso-para-margin-left:2.0gd'><span
class=inlinemediaobject><b><span lang=EN-US style='font-family:Tahoma'><span
style='mso-spacerun:yes'>&nbsp;</span>return 0;<o:p></o:p></span></b></span></p>

<p class=MsoNormal><span class=inlinemediaobject><b><span lang=EN-US
style='font-family:Tahoma'>}</span></b></span><b><span lang=EN-US
style='font-family:Tahoma'><o:p></o:p></span></b></p>

<p class=MsoNormal><b><span lang=EN-US style='font-family:Tahoma'><o:p>&nbsp;</o:p></span></b></p>

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