画出求1/(1*2)+1/(1*3)+1/(3*4)……+1/(99*100)值程序框图

程序框图不会啊,结果是：
1/(1*2)+1/(1*3)+1/(3*4)……+1/(99*100)
=1-1/2+1/2-1/3+1/3-1/3+……+1/99-1/100
=1-1/100
=99/100
=0.99要的就是程序框图呀，，不过谢谢！！能帮我想想程序框图吗？不会啊