编写一个 Python 函数，它接受一个字符串并计算大写字母和小写字母的个数。编程新手答案

【问题标题】：Write a Python function that accepts a string and calculate the number of upper case letters and lower case letters. new to programming编写一个 Python 函数，它接受一个字符串并计算大写字母和小写字母的个数。编程新手
【发布时间】：2022-12-04 13:09:01
【问题描述】：

I have tried this solution. But I am not receiving any output. Can someone please point out my error.

def num_case(str):
    z=0
    j=0
    for i in str:
        if i.isupper():
            z=z+1
            return z
        elif i.islower():
            j=j+1
            return j
        else:
            pass
    
    
    
    print(\'upper case:\', z)
    print(\'lowercase:\', j)
    
num_case(\'The quick Brow Fox\')

remove the return statements for starters

标签： python string uppercase lowercase

【解决方案1】：

【解决方案2】：