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<html>
<head>
<title>字符串函数</title>
</head>

<body lang=ZH-CN link=blue vlink=purple style='tab-interval:21.0pt;text-justify-trim:
punctuation'>

<div class=Section1 style='layout-grid:15.6pt'>

<p class=MsoNormal align=center style='text-align:center'><b><span
style='font-size:26.0pt;mso-bidi-font-size:12.0pt;font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>字符串函数</span></b><b><span
lang=EN-US style='font-size:26.0pt;mso-bidi-font-size:12.0pt;color:blue'><o:p></o:p></span></b></p>


<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='mso-font-kerning:0pt'>

<hr size=2 width="100%" align=center>

</span></div>


<table border=0 cellspacing=0 cellpadding=0 style='margin-left:86.15pt;
 border-collapse:collapse;mso-table-layout-alt:fixed;mso-padding-alt:0cm 1.4pt 0cm 1.4pt'>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=402 colspan=5 valign=top style='width:301.6pt;border-top:solid gray 1.5pt;
  border-left:none;border-bottom:solid gray .75pt;border-right:none;padding:
  0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-size:12.0pt;font-family:黑体'>字<span lang=EN-US><span
  style="mso-spacerun: yes">&nbsp; </span>符<span style="mso-spacerun:
  yes">&nbsp; </span>串<span style="mso-spacerun: yes">&nbsp; </span>转<span
  style="mso-spacerun: yes">&nbsp; </span>换</span></span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>abs<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>字符串到</span><span lang=EN-US>ASCII</span><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>转换</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>dec2hex<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>十进制数到十六进制字符串转换</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>fprintf<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>把格式化的文本写到文件中或显示屏上</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>hex2dec<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>十六进制字符串转换成十进制数</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>hex2num<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>十六进制字符串转换成</span><span lang=EN-US>IEEE</span><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>浮点数</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>int2str<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>整数转换成字符串</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>lower<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>字符串转换成小写</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>num2str<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>数字转换成字符串</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>setstr<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>ASCII</span><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>转换成字符串</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>sprintf<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>用格式控制，数字转换成字符串</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>sscanf<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>用格式控制，字符串转换成数字</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>str2mat<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
  "Times New Roman"'>字符串转换成一个文本矩阵</span><span lang=EN-US><o:p></o:p></span></p>
  </td>
  <td style='mso-cell-special:placeholder;border:none;padding:0cm 0cm 0cm 0cm'
  width=5><p class='MsoNormal'>&nbsp;</td>
 </tr>
 <tr style='mso-row-margin-right:3.8pt'>
  <td width=139 valign=top style='width:104.35pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='color:red'>str2num<o:p></o:p></span></p>
  </td>
  <td width=263 colspan=4 valign=top style='width:197.25pt;padding:0cm 1.4pt 0cm 1.4pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
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