python中如何用for循环对集合求和_python中for循环对集合内元素进行求和的实例

# 定义一个包含数字的集合
numbers = {2, 4, 6, 8, 10}
<h1>初始化求和变量</h1><p>total = 0</p><h1>使用for循环对集合元素求和</h1><p>for num in numbers:
total += num</p><h1>输出结果</h1><p>print("集合中所有元素的和为：", total)</p><p><span>立即学习</span>“<a href="https://pan.quark.cn/s/00968c3c2c15" style="text-decoration: underline !important; color: blue; font-weight: bolder;" rel="nofollow" target="_blank">Python免费学习笔记（深入）</a>”；</p>
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mixed_set = {1, 2, 'hello', 3}  # 包含非数字
total = 0
for item in mixed_set:
    total += item  # 运行时会报错

for item in mixed_set:
    if isinstance(item, (int, float)):
        total += item