Python 中print list的用法

fruits = ['apple', 'banana', 'orange', 'grape']
print(fruits)

['apple', 'banana', 'orange', 'grape']

fruits = ['apple', 'banana', 'orange', 'grape']
for fruit in fruits:
    print(fruit)

apple
banana
orange
grape

fruits = ['apple', 'banana', 'orange', 'grape']
for index, fruit in enumerate(fruits):
    print(index, fruit)

0 apple
1 banana
2 orange
3 grape

fruits = ['apple', 'banana', 'orange', 'grape']
print(fruits[1:3])

['banana', 'orange']

matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
for row in matrix:
    for elem in row:
        print(elem, end=' ')
    print()

1 2 3 
4 5 6 
7 8 9