VS Code中Python打印函数无输出问题及代码修复咨询

你的代码存在多处语法错误与逻辑问题，导致程序无法正常运行甚至无输出，具体问题及修复方案如下：

核心错误点 #

• 变量名非法：Python变量名不能包含空格，需将count positive改为count_positive、sum positive改为sum_positive，所有带空格的变量统一使用下划线命名法
• 类型转换函数错误：Python中转换整数的正确函数是int()，而非integer()
• 异常捕获语法错误：except Value Error``写法错误，正确应为except ValueError:，无需用反引号包裹异常类
• 缩进逻辑错误：判断number == 0、正负性的代码需放在try块内部，否则输入非法值时number未定义会引发报错；异常处理后需添加continue跳过后续无效逻辑
• 条件分支语法错误：else number < 0:语法无效，应改为elif number < 0:
• 语法符号错误：if number % 2 == 0:末尾的反引号多余；f-string写法错误，f "..."需调整为f"..."（无空格）
• 未执行主函数：代码仅定义main()但未调用，需在末尾添加调用语句触发执行

修复后的完整代码 #

def main():
    count_positive = 0
    count_negative = 0
    count_divisible_by_2 = 0
    sum_positive = 0
    sum_negative = 0
    sum_divisible_by_2 = 0
    
    while True:
        try:
            number = int(input("Enter an integer (or 0 to stop): "))
        except ValueError:
            print("Invalid integer. Please enter a valid number.")
            continue
        
        if number == 0:
            break
        
        if number > 0:
            count_positive += 1
            sum_positive += number
        elif number < 0:
            count_negative += 1
            sum_negative += number
        
        if number % 2 == 0:
            count_divisible_by_2 += 1
            sum_divisible_by_2 += number
    
    print(f"Positive integers count: {count_positive}, sum: {sum_positive}")
    print(f"Negative integers count: {count_negative}, sum: {sum_negative}")
    print(f"Integers divisible by 2 count: {count_divisible_by_2}, sum: {sum_divisible_by_2}")

if __name__ == "__main__":
    main()

说明 #

修复后的程序会正常接收整数输入，输入0时退出循环并输出各类统计结果；输入非法值时会提示错误并继续等待有效输入。

内容的提问来源于stack exchange，提问作者S L