Memahami susunan kamus Python

Kandungan soalan

Bolehkah seseorang menerangkan cara kamus python (v3.5) diisih?

data = {"john": 23, "rick": 33, "mary": 63, "ron": 23, "joel": 51}

for key in data:
        print("your name is " + key + ", and you are also " + str(data[key]) + " years old.")

Keluaran sebenar:

your name is rick, and you are also 33 years old.
your name is ron, and you are also 23 years old.
your name is mary, and you are also 63 years old.
your name is john, and you are also 23 years old.
your name is joel, and you are also 51 years old.

Output yang dijangkakan (urutan leksikografi):

Your name is John, and you are also 23 years old.
Your name is Rick, and you are also 33 years old.
Your name is Mary, and you are also 63 years old.
Your name is Ron, and you are also 23 years old.
Your name is Joel, and you are also 51 years old.

Jawapan betul

Ia bergantung pada versi Python yang anda gunakan.

Sebelum Python 3.6

Kamus menggunakan fungsi cincang asas untuk mengisih. Beberapa jenis mempunyai cincang masin, jadi ini bermakna anda mendapat pesanan yang berbeza pada setiap panggilan.

Python 3.6+

Kamus disusun mengikut susunan sisipan, iaitu kamus mengingati susunan item yang disisipkan. Daripada Dokumen:

Python 3.7

Guido van Rossum mengumumkan dalam bahawa semua pelaksanaan Python mesti mengekalkan susunan sisipan bermula dengan Python 3.7.

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