with open('input/lunch.csv', encoding = 'utf-8')as f:
for row in f:
colnms = row.rstrip().split(',')
name = colnms[0]
lunch = colnms[1]

if lunch == 'コロッケ弁当':
print(name)


colnms[0]
colnms[1]

この[0] [1] 意味教えてさいお願いします。