# 检查密码强度

<p>定义一个名为“isStrongPassword”的函数&#xff0c;该函数将字符串作为参数。功能然后将检查所提供的字符串是否满足以下条件&#xff0c;以检查是否为强 
密码&#xff1a;
1.必须至少包含1个大写和小写字母的组合
2.必须至少包含3位数字
3.必须至少包含3个特殊字符&#xff08;包括空格&#xff09;
4.密码长度必须至少12个字符
该函数将返回一个布尔值&#xff0c;即如果满足所有条件则返回True或返回False
确保使用可能返回False值的每个可能的输入来测试函数也一样</p>

## template

```python
def isStrongPassword(pwd):
	chars = list(pwd)
	upper = [c for c in chars if 'A' <= c and c <= 'Z']
	lower = [c for c in chars if 'a' <= c and c <= 'z']
	digit = [c for c in chars if '0' <= c and c <= '9' ]
	symbol = [c for c in chars if not ('A' <= c and c <= 'Z' or 'a' <= c and c <= 'z' or '0' <= c and c <= '9')] 
	strong = len(upper) >= 1 and len(lower) >= 1 and len(digit) >= 3 and len(symbol) >= 3 and len(pwd) >= 12
	return strong
print(isStrongPassword("Str0n9P@$$w0rd"))
print(isStrongPassword("StrongPassword"))
print(isStrongPassword("Stron9P@$$0rd"))
print(isStrongPassword("Str0n9Pass0rd"))
print(isStrongPassword("str0n9p@$$0rd"))
print(isStrongPassword("Str0n9P@$$"))
print(isStrongPassword("12345678"))
print(isStrongPassword("~!@#$$%^&*()_+"))
print(isStrongPassword("STRONGPASSWORD"))
```

## 答案

```python

```

## 选项

### A

```python

```

### B

```python

```

### C

```python

```