song_list=[
{
'Track_no': 1,
'Singer': 'Frank Sinatra',
}
{
'Track_no': 3,
'Singer': 'Maroon 5',
}
]
由于list
s和dict
s是可变的,您可以这样做:
for d in song_list:
d['Track_no'] = str(d['Track_no'])