从键盘上输入一串字符（用回车键结束，使用10号功能调用。）放在STRING中，试编制一个程序测试字符串中是否存在数字。如有，则把CL的第5位置1，否则将该位置置0。-Enter a string of characters from the keyboard (with the end of the Enter key, 10 function calls.) On the STRING, the existence of a digital test preparation of a program to test string. If so, put the CL 5 position 1, otherwise this bit is set to 0.