7.cpp

<p> <span style="font-size:12.0pt;font-family:宋体;">编程实现：</span> </p> <p> <span style="font-size:12.0pt;font-family:宋体;"><img src="http://tk.hustoj.com/attached/image/20141230/20141230203601_47600.png" alt="" /></span> </p> <p> 看不到图的，公式是 ：S=1+(1+根号2)+(1+根号2+根号3)+.....+(1+根号2+根号3+......+根号n);<br /> <span style="font-size:12.0pt;font-family:宋体;"></span> </p> <p class="MsoNormal" style="text-align:left;" align="left"> <b><span style="font-size:12.0pt;line-height:150%;font-family:宋体;">整数<span>n</span>通过键盘输入，<span>S</span>的值保留两位小数</span></b> </p>

<p class="MsoNormal" style="text-align:left;" align="left"> <span style="font-family:宋体;font-size:16px;line-height:24px;">输入一items整数</span><span style="font-family:宋体;font-size:16px;line-height:24px;">n&nbsp;</span><span style="font-family:宋体;font-size:16px;line-height:24px;">（多组输入数据）</span> </p>

<p class="MsoNormal" style="text-align:left;" align="left"> <span style="font-size:12.0pt;line-height:150%;font-family:宋体;">输出<span>s</span>的值 （多组输出数据）<span></span></span> </p>