insert(i, x) Insert an item at a given position. The first argument is the index of the element before which to insert, soa.insert(0,x)inserts at the front of the list, anda.insert(len(a),x)is equivalent toa.append(x). 在指定位置插入一個元素。第一個參數(shù)是準(zhǔn)備插入到其前面的那個元...
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