《虚拟银行》

简单程序：

//用户信息存储；

void cunpan()
{
<wbr><br><wbr>ofstream outfile("f1.dat",ios::out);//定义文件流对象，打开磁盘文件″f1.dat″<br><wbr>if(!outfile)<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> //如果打开失败，outfile返回0值<br><wbr>{<br><wbr><wbr>cerr&lt;&lt;"open error!"&lt;&lt;endl;<br><wbr><wbr>exit(1);<br><wbr>}<br><wbr>for(int i1=0;i1&lt;3;i1++)<br><wbr><wbr>for(int i2=0;i2&lt;2;i2++)<br><wbr><wbr><wbr>outfile&lt;&lt;z[i1][i2]&lt;&lt;" ";<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr> //向磁盘文件″f1.dat″输出数据<br><wbr><wbr>outfile.close();<br><wbr><br> }</wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

//得到用户信息；

void shuchu()
{
<wbr>ifstream infile("f1.dat",ios::in);<br><wbr>if(!infile)<br><wbr>{<br><wbr><wbr>cerr&lt;&lt;"open error!"&lt;&lt;endl;<br><wbr><wbr>exit(1);<br><wbr>}<br><wbr>for(int i1=0;i1&lt;3;i1++)<br><wbr><wbr>for(int i2=0;i2&lt;2;i2++)<br><wbr><wbr><wbr>infile&gt;&gt;z[i1][i2];<wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr>infile.close();<br><wbr><wbr><br> }</wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

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