a=[1,2]
b=‘abcd’
c=zip(a,b)#壓縮以短的為主
for x in c:
print(x)
def deal(b):
return b*b
a=[1,2,3,4]
c=map(deal,a)
print?
for i in c:
print(i)
a=[{‘name’:‘張三’,‘age’:18},
{‘name’:‘張二’,‘age’:28},
{‘name’:‘張大’,‘age’:38}
]
def maxage(a):
return a[‘age’]
c=max(a,key=maxage)
print?
def maxage(a):
return a[‘age’]
c=max(a,key=maxage)#以字典中的年齡作為參照
print?
def maxage(a):
return a[‘age’]#maxage=a[‘age’]
c=max(a,key=maxage)
print?
a=[1,3,-5,8,2]
a.sort()

print(a)
a.sort(key=abs)
print(a)
a=[2,5,-1,-6,3]
a.sort(key=abs)#abs絕對值abs,abs
print(a)
a=[2,4,-2,0,32]
a.sort(key=abs)
print(a)
def se(a):
return a%21
b=[1,2,3,4,5]
c=filter(se,b)#filter過濾器如果對就收入，如果錯就拋棄
for i in c:
print(i)
def se(a):
return a%20
b=[1,2,3,4]
c=filter(se,b)
for i in c:
print(i)

總結

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