程序读取字符的输出不正确

import chardet

# 检测文件编码
with open('file.txt', 'rb') as f:
    raw_data = f.read()
    result = chardet.detect(raw_data)
    encoding = result['encoding']

# 使用正确的编码读取文件
with open('file.txt', 'r', encoding=encoding) as f:
    content = f.read()
    print(content)

# 示例：读取文件数据
try:
    with open('file.txt', 'r') as f:
        content = f.read()
        print(content)
except FileNotFoundError:
    print("文件未找到")
except IOError:
    print("读取文件时发生错误")

# 示例：简单的逻辑错误
def calculate_sum(numbers):
    total = 0
    for num in numbers:
        total += num
    return total

# 测试
numbers = [1, 2, 3, 4, 5]
result = calculate_sum(numbers)
print(result)  # 输出应为15