?? isspace.html
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<title>字符函數 - isspace</title>
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請選定要查看的函數
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<ul>
<li><a href="isalnum.html">isalnum</a></li>
<li><a href="isalpha.html">isalpha</a></li>
<li><a href="iscntrl.html">iscntrl</a></li>
<li><a href="isdigit.html">isdigit</a></li>
<li><a href="islower.html">islower</a></li>
<li><a href="isascii.html">isascii</a></li>
<li><a href="isgraph.html">isgraph</a></li>
<li><a href="isprint.html">isprint</a></li>
<li><a href="ispunct.html">ispunct</a></li>
<font color=red>
<li><a href="isspace.html">isspace</a></li>
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<li><a href="isupper.html">isupper</a></li>
<li><a href="isxdigit.html">isxdigit</a></li>
<li><a href="toascii.html">toascii</a></li>
<li><a href="tolower.html">tolower</a></li>
<li><a href="toupper.html">toupper</a></li>
</ul>
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<td>目前共有15個函數</td>
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<tr><td height=62 valign=bottom><b><font size=5>isspace</font></b></td></tr>
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<pre>
原型：extern int isspace(int c);
用法：#include <ctype.h>
功能：判斷字符c是否為空白符
說明：當c為空白符時，返回非零值，否則返回零。
空白符指空格、水平制表、垂直制表、換頁、回車和換行符。
舉例：
// isspace.c
#include <syslib.h>
#include <ctype.h>
main()
{
char s[]="Test Line 1\tend\nTest Line 2\r";
int i;
clrscr(); // clear screen
for(i=0;i<strlen(s);i++)
{
if(isspace(s[i])) putchar('.');
else putchar(s[i]);
}
getchar();
return 0;
}
相關函數：<a href="isalnum.html">isalnum</a>,<a href="isalpha.html">isalpha</a>,<a href="isdigit.html">isdigit</a>,<a href="isxdigit.html">isxdigit</a>,<a href="iscntrl.html">iscntrl</a>,<a href="isgraph.html">isgraph</a>,<a href="isprint.html">isprint</a>,<a href="ispunct.html">ispunct</a>
</pre>
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