身份证号码验证代码,C代码库,德仔网

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【C】身份证号码验证
作者:姜南 / 发布于2012/2/21/ 756
<div><span class="preprocessor"><span id="1329783584580S" style="display: none;"></span>#include <stdio.h></span></div>
<div><span class="preprocessor">#include <string.h></span></div>
<div><span class="preprocessor">
</span></div>
<div></div>
<div><span class="comment">/* 读入数据 */</span><span> </span></div>
<div><span class="keyword">void</span><span> input(</span><span class="datatypes">char</span><span> a[]){</span></div>
<div><span>    </span><span class="datatypes">int</span><span> i;  </span></div>
<div><span>    </span><span class="keyword">for</span><span>(i=0;i<6;i++) scanf(</span><span class="string">"%c"</span><span>,&a[i]);</span></div>
<div><span>    a[6]=</span><span class="string">'1'</span><span>;</span></div>
<div><span>    a[7]=</span><span class="string">'9'</span><span>;</span></div>
<div><span>    </span><span class="keyword">for</span><span>(i=8;i<17;i++) scanf(</span><span class="string">"%c"</span><span>,&a[i]);</span></div>
<div><span>    a[17]=</span><span class="string">'/0'</span><span>;</span></div>
<div><span>}</span></div>
<div><span>
</span></div>
<div></div>
<div><span class="comment">/* 计算加权因子 */</span></div>
<div><span class="datatypes">int</span><span> mi(</span><span class="datatypes">int</span><span> n){</span></div>
<div><span>    </span><span class="datatypes">int</span><span> i,sum=1;</span></div>
<div><span>    </span><span class="keyword">for</span><span>(i=1;i<=n;i++) sum*=2;</span></div>
<div><span>    sum%=11;</span></div>
<div><span>    </span><span class="keyword">return</span><span> sum;</span></div>
<div><span>}</span></div>
<div><span>
</span></div>
<div></div>
<div><span class="comment">/* 计算校验数字 */</span></div>
<div><span class="datatypes">int</span><span> jiaoyan(</span><span class="datatypes">char</span><span> a[]){</span></div>
<div><span>    </span><span class="datatypes">int</span><span> i,sum=0;</span></div>
<div><span>    </span><span class="keyword">for</span><span>(i=0;i<17;i++)</span></div>
<div><span>        sum+=mi(17-i)*(a[i]-</span><span class="string">'0'</span><span>);</span></div>
<div><span>    sum%=11;</span></div>
<div><span>    </span><span class="keyword">return</span><span> sum;</span></div>
<div><span>}</span></div>
<div><span>
</span></div>
<div></div>
<div><span class="datatypes">int</span><span> main(){</span></div>
<div><span>    </span><span class="datatypes">int</span><span> i,n;</span></div>
<div><span>    </span><span class="datatypes">char</span><span> a[19],f[11]={</span><span class="string">'1'</span><span>,</span><span class="string">'0'</span><span>,</span><span class="string">'X'</span><span>,</span><span class="string">'9'</span><span>,</span><span class="string">'8'</span><span>,</span><span class="string">'7'</span><span>,</span><span class="string">'6'</span><span>,</span><span class="string">'5'</span><span>,</span><span class="string">'4'</span><span>,</span><span class="string">'3'</span><span>,</span><span class="string">'2'</span><span>};</span></div>
<div><span>    scanf(</span><span class="string">"%d"</span><span>,&n);</span></div>
<div><span>    </span><span class="keyword">while</span><span>(n--){</span></div>
<div><span>        getchar();</span></div>
<div><span>        input(a);</span></div>
<div><span>        a[17]=f[jiaoyan(a)];</span></div>
<div><span>        a[18]=</span><span class="string">'/0'</span><span>;</span></div>
<div><span>        printf(</span><span class="string">"%s/n"</span><span>,a);</span></div>
<div><span>    }</span></div>
<div><span>    </span><span class="keyword">return</span><span> 0;</span></div>
<div><span>}</span></div>
<div></div>
<div><span id="1329783584724E" style="display: none;"></span></div>
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