检查字符串是否至少包含列表中的两个字符串

def check_string_contains_two(strings, target_list):
    count = 0
    for target in target_list:
        if target in strings:
            count += 1
        if count >= 2:
            return True
    return False

# 示例用法
strings = "这是一个示例字符串，包含一些关键字"
target_list = ["示例", "关键字", "不存在"]
result = check_string_contains_two(strings, target_list)
print(result)  # 输出: True

def check_string_contains_two_optimized(strings, target_list):
    target_set = set(target_list)
    count = sum(1 for target in target_set if target in strings)
    return count >= 2

def check_string_contains_two_safe(strings, target_list):
    if not strings or not target_list:
        return False
    target_set = set(target_list)
    count = sum(1 for target in target_set if target in strings)
    return count >= 2