Bo'sh bo'lmagan to'plamni set funksiyasi yordamida tuzish tavsiya etilmaydi. set_funksiyasi = set([1, 2, 3, 4, 'a', 'b']) print(set_funksiyasi) {1, 2, 3, 4, 'b', 'a'} Warning: Function call can be replaced with set literal
Lu'gat va to'plam jingalak qavslar ichida joylashadi. Bo'sh to'plamni lug'atdan farqlash uchun set() funksiyasi yordamida tuzish tavsiya etiladi. none = set() print(none) set()
To'plamda ro'yxat, to'plam yoki lug'at kabi o'zgaruvchan elementlar bo'lishi mumkin emas.
Bo'sh bo'lmagan to'plamni set funksiyasi yordamida tuzish tavsiya etilmaydi. set_funksiyasi = set([1, 2, 3, 4, 'a', 'b']) print(set_funksiyasi) {1, 2, 3, 4, 'b', 'a'} Warning: Function call can be replaced with set literal
Lu'gat va to'plam jingalak qavslar ichida joylashadi. Bo'sh to'plamni lug'atdan farqlash uchun set() funksiyasi yordamida tuzish tavsiya etiladi. none = set() print(none) set()
To'plamda ro'yxat, to'plam yoki lug'at kabi o'zgaruvchan elementlar bo'lishi mumkin emas.
Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”