摘要： Python按照索引访问list L = [95.5,85,59]print L[0]print L[1]print L[2] Python之倒序访问list L = [95.5, 85, 59]print L[-1]print L[-2]print L[-3] Python之添加新元素 L = [ 阅读全文

摘要： d = { 'Adam': 95, 'Lisa': 85, 'Bart': 59}for key in d: print key+':',d[key] months = set(['Jan','Feb'])x1 = 'Feb'x2 = 'Sun' if x1 in months: print 'x1 阅读全文