字符和数据计算的实验

实验内容：先在屏幕上显示“input string,”,输入字符串 再显示“result=”。如为0~9的数字，则计数器加1，如为非数字，则直接显示，但不计数。-Characters and calculating data of experiments

Experiment content: first on the screen shows "input string,", the input string　It is displayed "result =". As for 0 ~ 9 number, the counter add 1, such as is not a number, is directly display, but don t count.