import java.util.Scanner;public class Counter { static Scanner scanner = new Scanner(System.in); public static void count(String s) { int low, upper, num, others; low = upper = num = others = 0; for (int i = 0; i < s.length(); i++) { if (Character.is
方法1.自定义类 class CharNum { private char c; private int num; public char C { get { return c; } } public int Num { get { return num; } set { num = value; } } public CharNum(char ch) { this.c = ch; this.num = 1; } } static void Main(string[] args) { /* */
函数计算字符数量,包括在一个字符串的空格的个数. 语法 nchar()函数的基本语法是: nchar(x) 以下是所使用的参数的说明: x - 向量输入. 示例 result <- nchar("Count the number of characters") print(result) 当我们上面的代码执行时,它产生以下结果: [1] 30