if L==[]:
return (None, None)
max=min=L[0]
for i in L:
if i>max:
max=i
if i<min:
min=i
return(min,max)
终于对了!
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把握思念
if L==[]:
return (None, None)
max=min=L[0]
for i in L:
if i>max:
max=i
if i<min:
min=i
return(min,max)
终于对了!