48.python中return总结

# 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)