当出现错误R时保存For循环的结果

result = []
for item in iterable:
    try:
        # 可能出现错误的代码
        value = some_operation(item)
        result.append(value)
    except Exception as e:
        # 出现错误时的处理逻辑
        result.append(None)  # 保存错误结果

result = []
for item in iterable:
    # 可能出现错误的代码
    try:
        value = some_operation(item)
        result.append(value)
    except Exception as e:
        # 出现错误时的处理逻辑
        result.append(None)  # 保存错误结果

result = []
error_flag = False
for item in iterable:
    # 可能出现错误的代码
    try:
        value = some_operation(item)
        result.append(value)
    except Exception as e:
        # 出现错误时的处理逻辑
        error_flag = True
        result.append(None)  # 保存错误结果