python统计字符串中数字,大写字母,小写字母出现的次数

Posted 2023-04-27

参考技术A from string import digits
from string import ascii_lowercase
from string import ascii_uppercase

s=input("letters:")
id=0
il=0
iu=0
d=digits
l=ascii_lowercase
u=ascii_uppercase
#print(f"d\nl\nu")
'''(Tab)处缩进'''

for ss in s:
(Tab)if ss in d:
(Tab)(Tab)id+=1
(Tab)elif ss in l:
(Tab)(Tab)il+=1
(Tab)elif ss in u:
(Tab)(Tab)iu+=1

print(f"digits:\tid\nlower_letters:\til\nupper_letters:\tiu")

控制台输入字符串，统计出大小字母，数字字符的个数

 public static void main(String[] args) {
        // 在控制台输入字符串，统计出大写的字符的个数，小写的字符个数，数字类型的字符个数，以及其他字符的个数
        Scanner sc = new Scanner(System.in);  //控制台输入字符串
        int big = 0;   //初始化字符个数
        int small = 0;
        int num = 0;
        int other = 0;

        System.out.println("请输入一串字符串");
        String str = sc.next();

        for (int i = 0; i < str.length(); i++) {
            if (str.charAt(i) >= 65 && str.charAt(i) <= 90) {
                big++;
            } else if (str.charAt(i) >= 97 && str.charAt(i) <= 122) {
                small++;
            } else if (str.charAt(i) >= 48 && str.charAt(i) <= 57) {
                num++;
            } else {
                other++;
            }
        }
        System.out.println("大写字母有：" + big + "个");
        System.out.println("小写字母有：" + small + "个");
        System.out.println("数字有：" + num + "个");
        System.out.println("其他字符有：" + other + "个");
    }