'''
1.定义一个func(name)，该函数效果如下。
assert func("lilei") = "Lilei"
assert func("hanmeimei") = "Hanmeimei"
assert func("Hanmeimei") = "Hanmeimei"
'''
1 def func(name): 2 a=name.lower() 3 return a.capitalize() 4 5 6 print func("lilei") 7 print func("hanmeimei") 8 print func("Hanmeimei") 9 10 11 assert func("lilei")=="Lilei" 12 assert func("hanmeimei") =="Hanmeimei" 13 assert func("Hanmeimei") == "Hanmeimei"
"""
2.定义一个func(name,callback=None),效果如下。
assert func("lilei") == "Lilei"
assert func("LILEI",callback=string.lower) == "lilei"
assert func("lilei",callback=string.upper) == "LILEI"
"""
2 def func(name,callback=None): 3 if callback==None: 4 return name.capitalize() 5 else: 6 return callback（name） 7 8 print func("lilei") 9 print func("LILEI",callback=string.lower) 10 print func("lilei",callback=string.upper) 11 12 13 assert func("lilei") == "Lilei" 14 assert func("LILEI",callback=string.lower) == "lilei" 15 assert func("lilei",callback=string.upper) == "LILEI"
"""
3.定义一个func(*kargs),效果如下。
l = func(1,2,3,4,5)
for i in l:
print i,
#输出 1 2 3 4 5
l = func(5,3,4,5,6)
for i in l:
print i
#输出 5 3 4 5 6
"""
1 def getitem(*kargs): 2 return kargs
4.定义一个func(*kargs)，该函数效果如下。
assert func(222,1111,'xixi','hahahah') == "xixi"
assert func(7,'name','dasere') == 'name'
assert func(1,2,3,4) == None
"""
1 def shortstr(*kargs): 2 3 lis = filter(lambda x:isinstance(x,str),kargs) 4 5 len_lis = [len(x) for x in lis] 6 7 if len_lis: 8 min_index = min(len_lis) 9 return lis[len_lis.index(min_index)] 10 return None
"""
5.定义一个func(name=None,**kargs),该函数效果如下。
assert func(“lilei”) == "lilei"
assert func("lilei",years=4) == "lilei,years:4"
assert func("lilei",years=10,body_weight=20) == "lilei,years:4,body_weight:20"
"""
1 def func(name=None,**kargs): 2 lis = ["%s:%s"%(k,v) for k,v in kargs.items()] 3 lis.insert(0,name) 4 return ','.join(lis)
注：部分习题答案转载自“老王Python”