求二维数组中每行元素的平均值代码,C代码库,德仔网

代码语言
代码分类
【C】求二维数组中每行元素的平均值
作者:Dezai.CN / 发布于2011/7/8/ 883
<div>
<div class="cnblogs_code">
<pre><div><span style="color: #008000">//</span><span style="color: #008000">程序8：求二维数组中每行元素的平均值</span><span style="color: #008000"></span><span style="color: #000000">#include </span><span style="color: #000000"><</span><span style="color: #000000">stdio.h</span><span style="color: #000000">></span><span style="color: #000000"></span><span style="color: #0000ff">int</span><span style="color: #000000"> main(){  </span><span style="color: #0000ff">float</span><span style="color: #000000"> a[</span><span style="color: #800080">10</span><span style="color: #000000">][</span><span style="color: #800080">10</span><span style="color: #000000">],sum;  </span><span style="color: #0000ff">int</span><span style="color: #000000"> i,j;  </span><span style="color: #0000ff">for</span><span style="color: #000000"> (i</span><span style="color: #000000">=</span><span style="color: #800080">0</span><span style="color: #000000">; i</span><span style="color: #000000"><</span><span style="color: #800080">10</span><span style="color: #000000">; i</span><span style="color: #000000">++</span><span style="color: #000000">)</span><span style="color: #008000">//</span><span style="color: #008000">传入数据</span><span style="color: #008000"></span><span style="color: #000000">  {    </span><span style="color: #0000ff">for</span><span style="color: #000000"> (j</span><span style="color: #000000">=</span><span style="color: #800080">0</span><span style="color: #000000">; j</span><span style="color: #000000"><</span><span style="color: #800080">10</span><span style="color: #000000">; j</span><span style="color: #000000">++</span><span style="color: #000000">)    {      a[i][j] </span><span style="color: #000000">=</span><span style="color: #000000"> (i</span><span style="color: #000000">+</span><span style="color: #800080">2</span><span style="color: #000000">)</span><span style="color: #000000">*</span><span style="color: #000000">(j</span><span style="color: #000000">+</span><span style="color: #000000">rand())</span><span style="color: #000000">*</span><span style="color: #000000">rand();</span><span style="color: #008000">//</span><span style="color: #008000">随便赋值</span><span style="color: #008000"></span><span style="color: #000000">    }  }  </span><span style="color: #0000ff">for</span><span style="color: #000000"> (i</span><span style="color: #000000">=</span><span style="color: #800080">0</span><span style="color: #000000">; i</span><span style="color: #000000"><</span><span style="color: #800080">10</span><span style="color: #000000">; i</span><span style="color: #000000">++</span><span style="color: #000000">)</span><span style="color: #008000">//</span><span style="color: #008000">求平均值</span><span style="color: #008000"></span><span style="color: #000000">  {    </span><span style="color: #0000ff">for</span><span style="color: #000000"> (j</span><span style="color: #000000">=</span><span style="color: #800080">0</span><span style="color: #000000">; j</span><span style="color: #000000"><</span><span style="color: #800080">10</span><span style="color: #000000">; j</span><span style="color: #000000">++</span><span style="color: #000000">)    {      sum </span><span style="color: #000000">+=</span><span style="color: #000000"> a[i][j];    }    printf(</span><span style="color: #800000">"</span><span style="color: #800000">第%d行的平均值：%f\n</span><span style="color: #800000">"</span><span style="color: #000000">, i, sum</span><span style="color: #000000">/</span><span style="color: #800080">10</span><span style="color: #000000">);  }  </span><span style="color: #0000ff">return</span><span style="color: #000000"> </span><span style="color: #800080">1</span><span style="color: #000000">;  }</span></div></pre>
</div>
测试结果：
<div class="cnblogs_code">
<pre><div><span style="color: #000000">[hanxi@hanxi</span><span style="color: #000000">-</span><span style="color: #000000">workstation Documents]$ gcc </span><span style="color: #000000">-</span><span style="color: #000000">lm code8.c[hanxi@hanxi</span><span style="color: #000000">-</span><span style="color: #000000">workstation Documents]$ .</span><span style="color: #000000">/</span><span style="color: #000000">a.</span><span style="color: #0000ff">out</span><span style="color: #000000">第0行的平均值：</span><span style="color: #800080">733531699.200000</span><span style="color: #000000">第1行的平均值：</span><span style="color: #800080">455155609.600000</span><span style="color: #000000">第2行的平均值：</span><span style="color: #800080">625712537.600000</span><span style="color: #000000">第3行的平均值：</span><span style="color: #800080">36360051.200000</span><span style="color: #000000">第4行的平均值：</span><span style="color: #000000">-</span><span style="color: #800080">482607616.000000</span><span style="color: #000000">第5行的平均值：</span><span style="color: #000000">-</span><span style="color: #800080">487296256.000000</span><span style="color: #000000">第6行的平均值：</span><span style="color: #000000">-</span><span style="color: #800080">608275507.200000</span><span style="color: #000000">第7行的平均值：</span><span style="color: #000000">-</span><span style="color: #800080">720682086.400000</span><span style="color: #000000">第8行的平均值：</span><span style="color: #000000">-</span><span style="color: #800080">1062218342.400000</span><span style="color: #000000">第9行的平均值：</span><span style="color: #000000">-</span><span style="color: #800080">780733542.400000</span></div></pre>
</div>
</div>
试试其它关键字
　平均值　
同语言下
可能有用的
Dezai.CN贡献的其它代码(4037)