从键盘输入一行字符(假设少于30个字符)，分别统计其中数字、字母、空格和其他字符的个数,函数复制，数组求和，删除不符合的字符信息-Enter a line of characters from the keyboard (assuming less than 30 characters), respectively, where the number of statistical numbers, letters, spaces and other characters, and copy functions, arrays sum, delete character information does not meet the