python -- list

#test python list

#defin a traversal list function
def TravList(ls):
    '''traversal a list''';
    
    print 'begin traversal list\n';
    for it in lsShop:
        print it, '\n';
    print 'end of traversal\n';

#define a list
lsShop = ['mango', 'apple', 'carrot', 'banana'];
print 'list len = ', len(lsShop), '\n';

TravList(lsShop);

#list append item
lsShop.append('rice');
TravList(lsShop);

#list sort
lsShop.sort();
TravList(lsShop);

#get item by index and del
oldItem = lsShop[0];
print 'ittem[0]:', oldItem, '\n';
del lsShop[0];
TravList(lsShop);

#inset a int object
lsShop.insert(0, 1);
TravList(lsShop);

lsShop.sort();
TravList(lsShop);