题解 | 密码强度等级

# 思路:难点---如何计算得分
s = input()  # 输入密码
sc = 0  # 总分

# 1.长度
if len(s) >= 8:
    sc += 25
elif len(s) >4:
    sc += 10
else:
    sc += 5


# 2.字母得分
lower_a = [] # 存放小写字母
upper_a = [] # 存放大写字母
for i in s:
    if i.islower():
        lower_a.append(i)
    if i.isupper():
        upper_a.append(i)
# 判断得分
if len(lower_a) > 0 and len(upper_a) > 0:  
    sc += 20
if (len(lower_a) > 0 and len(upper_a) == 0) or (len(lower_a) == 0 and len(upper_a) > 0):  
    sc += 10

# 3.数字
n = '0123456789'
cnt_num = 0
for i in s:
    if i in n:
        cnt_num += 1
# 判断得分
if cnt_num == 1:
    sc += 10
elif cnt_num > 1:
    sc += 20

# 4.符号
str_label = "!#$%&'()*+,-./:;<=\">?@[\]^_`{|}~"
cnt_lab = 0
for i in s:
    if i in str_label:
        cnt_lab += 1
# 判断得分
if cnt_lab == 1:
    sc += 10
elif cnt_lab > 1:
    sc += 25

# 5.奖励
if (len(lower_a) > 0 and len(upper_a) > 0) and cnt_num > 0 and cnt_lab > 0:
    sc += 5
elif (len(lower_a) > 0 or len(upper_a) > 0) and cnt_num > 0 and cnt_lab > 0:
    sc += 3
elif (len(lower_a) > 0 or len(upper_a) > 0) and cnt_num > 0 and cnt_lab == 0:
    sc += 2


# 输出评分等级
if sc >= 90:
    print("VERY_SECURE")
elif sc >= 80:
    print("SECURE")
elif sc >= 70:
    print("VERY_STRONG")
elif sc >= 60:
    print("STRONG")
elif sc >= 50:
    print("AVERAGE")
elif sc >= 25:
    print("WEAK")
else:
    print("VERY_WEAK")