<div>编写一个过程，对一个<span>n&times;n矩阵，通过行变换，使其每行元素的平均值按递增顺序排列</span></div>

<p><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">如果矩阵<span lang="EN…

<p class="p0" style="text-align: left; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: '宋体'; font-size: 10.5pt; mso-spacerun: 'yes'">以字符串形式输入一个小数，对其去精度，精确到小数点后<font face="Times New Roman">2</font><font face="宋体">位。&…

<p><span style="font-size: 10.5pt; font-family: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">设整数<span lang="EN-…

<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-style: normal; font-family: '宋体'; color: rgb(0,0,0); font-size: 10.5pt; font-weight: normal; mso-spacerun: 'yes'">输入一行字符串(只包含字母)，</span><span style="font-style: no…

<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: '宋体'; font-size: 10.5pt; mso-spacerun: 'yes'">输入一行字符串，按特定字符&lsquo;<font face="Times New Roman">-</font><font face="宋体">&rsquo;截取。</font…