l = [1,2,3,4] for i in l: if i != 4: l.remove(i) print l
l = [1, 2, 3, 4] for i in range(len(l)): if l[i] == 4: del l[i] print l
l = [1,2,3,4] l = filter(lambda x:x !=4,l) print l
l = [1,2,3,4] l = [ i for i in l if i !=4]//同样产生一个新序列,复值给l print l
l = [1,2,3,4] dellist = [] for i in l: if i == 4: dellist.append(i) for i in dellist: l.remove(i)
l = [1,2,3,4] ll = l l.remove(1) print l//肯定是[2,3,4] print ll//这里会是什么?
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