'''
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File Name： PDataType.py
Download from：https://www.learnpython.net/cn/python-code-samples.html
Author: LearnPython.Net
Editor: CoderChiu

'''

#定义两个整数nA和nB
nA = 10
nB = 20

print("nA(10) + nB(20) = ", nA + nB)
print("nA(10) - nB(20) = ", nA - nB)
print("nA(10) * nB(20) = ", nA * nB)
print("nA(10) / nB(20) = ", nA / nB)
print("nA(10) ** nB(20) = ", nA ** nB)
print("nA(10) // nB(20) = ", nA // nB)

#3个小朋友抓的螃蟹数量
nLukasCrabNum = 5
nRobinCrabNum = 7
nAlexCreabNum = 4

if nLukasCrabNum > nRobinCrabNum :
    print("Lukas is great!")
elif nLukasCrabNum == nRobinCrabNum:
    print("Lukas and Robin is great!")
else:
    print("Robin is great!")


#Lukas 和 Robin都捉到5只螃蟹，就去吃饭；
if (nLukasCrabNum >= 5) and (nRobinCrabNum >= 5):
    print("Go to eat something.")
else:
    print("Searing crabs.")
    
#Alex 和 Robin都捉到5只螃蟹，就去吃饭；
if (nAlexCreabNum >= 5) or (nRobinCrabNum >= 5):
    print("Go to eat something.")
else:
    print("Searing crabs.")

#捉到5只螃蟹的，就去吃饭；没有捉到的，就继续；
bLukas = nLukasCrabNum >= 5
bRobin = nRobinCrabNum >= 5
bAlex = nAlexCreabNum >= 5

#7点钟，还没有吃饭的，就要去吃饭；
if not bLukas:
    print("Lukas go to eat something after 7.")
if not bRobin:
    print("Robin go to eat something after 7.")
if not bAlex:
    print("Alex go to eat something after 7.")