python 字典k,v交换值

字典值得交换

a_list = {'01': 'January', '02': 'February', '03': 'March', '04': 'April', '05': 'May', '06': 'June', '07': 'July',
              '08': 'August', '09': 'September', '10': 'October', '11': 'November', '12': 'December'}
    dict2 = {value: key for key, value in a_list.items()}
    print(dict2)
    #{'January': '01', 'February': '02', 'March': '03', 'April': '04', 'May': '05', 'June': '06', 'July': '07', 'August': '08', 'September': '09', 'October': '10', 'November': '11', 'December': '12'}