删除字符串末尾的大写字母

import re

def remove_uppercase(string):
    # 使用正则表达式匹配大写字母
    pattern = re.compile('[A-Z]+$')
    match = pattern.search(string)
    if match:
        # 删除匹配到的大写字母
        return string[:-len(match.group())]
    else:
        return string

# 测试示例
string = "HelloWorld"
result = remove_uppercase(string)
print(result)  # 输出 "Hello"

def remove_uppercase(string):
    for i in range(len(string)-1, -1, -1):
        if string[i].isupper():
            string = string[:i]
        else:
            break
    return string

# 测试示例
string = "HelloWorld"
result = remove_uppercase(string)
print(result)  # 输出 "Hello"