# python中return 两种场景
# 01:标识着一个函数是有返回值的函数
def add2num(a, b):
return a + b
# 02: 提前结束函数的调用
# def score_desc(score):
# # 判断分数是否合法
# if score > 100 or score < 0:
# print("您传入的分数不合法...")
# else:
# # 判断
# if score >= 90:
# print("优")
# elif score >= 80:
# print("良")
# elif score >= 60:
# print("中")
# elif score >= 0:
# print("差")
def score_desc(score):
# 判断分数是否合法
if score > 100 or score < 0:
print("您传入的分数不合法...")
return
print("测试")
# 判断
if score >= 90:
print("优")
elif score >= 80:
print("良")
elif score >= 60:
print("中")
elif score >= 0:
print("差")
score_desc(90)