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<PRE>　</PRE>

<PRE>函数大全(v开头)</PRE>
<PRE>函数名: <font size="5" color="#FF0000">vfprintf </font>
功 能: 送格式化输出到一流中 
用 法: int vfprintf(FILE *stream, char *format, va_list param); 
程序例: </PRE>
<PRE>#include 
#include 
#include </PRE>
<PRE>FILE *fp; </PRE>
<PRE>int vfpf(char *fmt, ...) 
{ 
va_list argptr; 
int cnt; </PRE>
<PRE>va_start(argptr, fmt); 
cnt = vfprintf(fp, fmt, argptr); 
va_end(argptr); </PRE>
<PRE>return(cnt); 
} </PRE>
<PRE>int main(void) 
{ 
int inumber = 30; 
float fnumber = 90.0; 
char string[4] = &quot;abc&quot;; </PRE>
<PRE>fp = tmpfile(); 
if (fp == NULL) 
{ 
perror(&quot;tmpfile() call&quot;); 
exit(1); 
} </PRE>
<PRE>vfpf(&quot;%d %f %s&quot;, inumber, fnumber, string); 
rewind(fp); 
fscanf(fp,&quot;%d %f %s&quot;, &amp;inumber, &amp;fnumber, string); 
printf(&quot;%d %f %s\n&quot;, inumber, fnumber, string); 
fclose(fp); </PRE>
<PRE>return 0; 
} 


</PRE>
<PRE>函数名:<font size="5" color="#FF0000"> vfscanf </font>
功 能: 从流中执行格式化输入 
用 法: int vfscanf(FILE *stream, char *format, va_list param); 
程序例: </PRE>
<PRE>#include 
#include 
#include </PRE>
<PRE>FILE *fp; </PRE>
<PRE>int vfsf(char *fmt, ...) 
{ 
va_list argptr; 
int cnt; </PRE>
<PRE>va_start(argptr, fmt); 
cnt = vfscanf(fp, fmt, argptr); 
va_end(argptr); </PRE>
<PRE>return(cnt); 
} </PRE>
<PRE>int main(void) 
{ 
int inumber = 30; 
float fnumber = 90.0; 
char string[4] = &quot;abc&quot;; </PRE>
<PRE>fp = tmpfile(); 
if (fp == NULL) 
{ 
perror(&quot;tmpfile() call&quot;); 
exit(1); 
} 
fprintf(fp,&quot;%d %f %s\n&quot;,inumber,fnumber,string); 
rewind(fp); </PRE>
<PRE>vfsf(&quot;%d %f %s&quot;,&amp;inumber,&amp;fnumber,string); 
printf(&quot;%d %f %s\n&quot;,inumber,fnumber,string); 
fclose(fp); </PRE>
<PRE>return 0; 
} 

</PRE>
<PRE>函数名: <font size="5" color="#FF0000">vprintf </font>
功 能: 送格式化输出到stdout中 
用 法: int vprintf(char *format, va_list param); 
程序例: </PRE>
<PRE>#include 
#include </PRE>
<PRE>int vpf(char *fmt, ...) 
{ 
va_list argptr; 
int cnt; </PRE>
<PRE>va_start(argptr, format); 
cnt = vprintf(fmt, argptr); 
va_end(argptr); </PRE>
<PRE>return(cnt); 
} </PRE>
<PRE>int main(void) 
{ 
int inumber = 30; 
float fnumber = 90.0; 
char *string = &quot;abc&quot;; </PRE>
<PRE>vpf(&quot;%d %f %s\n&quot;,inumber,fnumber,string); </PRE>
<PRE>return 0; 
} 

</PRE>
<PRE>函数名: <font size="5" color="#FF0000">vscanf </font>
功 能: 从stdin中执行格式化输入 
用 法: int vscanf(char *format, va_list param); 
程序例: </PRE>
<PRE>#include 
#include 
#include </PRE>
<PRE>int vscnf(char *fmt, ...) 
{ 
va_list argptr; 
int cnt; </PRE>
<PRE>printf(&quot;Enter an integer, a float, and a string (e.g. i,f,s,)\n&quot;); 
va_start(argptr, fmt); 
cnt = vscanf(fmt, argptr); 
va_end(argptr); </PRE>
<PRE>return(cnt); 
} </PRE>
<PRE>int main(void) 
{ 
int inumber; 
float fnumber; 
char string[80]; </PRE>
<PRE>vscnf(&quot;%d, %f, %s&quot;, &amp;inumber, &amp;fnumber, string); 
printf(&quot;%d %f %s\n&quot;, inumber, fnumber, string); </PRE>
<PRE>return 0; 
} 


</PRE>
<PRE>函数名: <font size="5" color="#FF0000">vsprintf </font>
功 能: 送格式化输出到串中 
用 法: int vsprintf(char *string, char *format, va_list param); 
程序例: </PRE>
<PRE>#include 
#include 
#include </PRE>
<PRE>char buffer[80]; </PRE>
<PRE>int vspf(char *fmt, ...) 
{ 
va_list argptr; 
int cnt; </PRE>
<PRE>va_start(argptr, fmt); 
cnt = vsprintf(buffer, fmt, argptr); 
va_end(argptr); </PRE>
<PRE>return(cnt); 
} </PRE>
<PRE>int main(void) 
{ 
int inumber = 30; 
float fnumber = 90.0; 
char string[4] = &quot;abc&quot;; </PRE>
<PRE>vspf(&quot;%d %f %s&quot;, inumber, fnumber, string); 
printf(&quot;%s\n&quot;, buffer); 
return 0; 
} 


</PRE>
<PRE>函数名: <font size="5" color="#FF0000">vsscanf </font>
功 能: 从流中执行格式化输入 
用 法: int vsscanf(char *s, char *format, va_list param); 
程序例: </PRE>
<PRE>#include 
#include 
#include </PRE>
<PRE>char buffer[80] = &quot;30 90.0 abc&quot;; </PRE>
<PRE>int vssf(char *fmt, ...) 
{ 
va_list argptr; 
int cnt; </PRE>
<PRE>fflush(stdin); </PRE>
<PRE>va_start(argptr, fmt); 
cnt = vsscanf(buffer, fmt, argptr); 
va_end(argptr); </PRE>
<PRE>return(cnt); 
} </PRE>
<PRE>int main(void) 
{ 
int inumber; 
float fnumber; 
char string[80]; </PRE>
<PRE>vssf(&quot;%d %f %s&quot;, &amp;inumber, &amp;fnumber, string); 
printf(&quot;%d %f %s\n&quot;, inumber, fnumber, string); 
return 0; 
} 




</PRE>

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<PRE>


</PRE>
<pre>资料收集：beck Copyright 2004 张求熙, All Rights Reserved</pre>
<pre><a href="mailto:Email:qiuxi1984@126.com">Email:qiuxi1984@126.com</a>     QQ:35540948 </pre>
<PRE> </PRE>
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