區(qū)塊鏈hello world 思路：
根據(jù)學(xué)習(xí)筆記一知道绘雁，一個區(qū)塊鏈需要包含如下信息
1:交易數(shù)據(jù)
2:區(qū)塊信息（hash值 工作量等）
基礎(chǔ)方法：

交易功能 functon（從A，給B位隶，100元）

addTransactions（A，B，100）

    "message": [
        "這筆交易會被增加到區(qū)塊4"
    ]
}

以上數(shù)據(jù)是在我請求接口時候截取贡未，之所以放在第4個塊熊榛，是因為我寫筆記的時候已經(jīng)挖到了4個塊锚国，前3個塊已經(jīng)打包。

挖出新塊functon（最近的交易打包成區(qū)塊后玄坦，新增一個區(qū)塊）

做了以下三件事
計算工作量證明PoW
通過新增一個交易授予礦工（自己）一個幣
構(gòu)造新區(qū)塊并將其添加到鏈中
addNewBlock（新交易數(shù)據(jù)血筑，上一個區(qū)塊hash值）

{
    "index": 5,
    "proof": 146502,
    "message": "New Block Forged",
    "transactions": [
        {
            "amount": 1,
            "sender": "0",
            "recipient": "a9b92e8a11d447639a1f1cdb1954fc48"
        }
    ],
    "previous_hash": "40d003f3f756200731c4d2109be15fa718056d95bf57fe0ccaa18f8195a6e841"
}

查詢當前區(qū)塊所有信息functon（當前所有區(qū)塊绘沉，所有的交易）

{
    "chain": [
        {
            "index": 1,
            "proof": 100,
            "transactions": [],
            "timestamp": 1523528930232,
            "previous_hash": "0"
        },
        {
            "index": 2,
            "proof": 35293,
            "transactions": [
                {
                    "amount": 126,
                    "sender": "程小凡",
                    "recipient": "張小"
                },
                {
                    "amount": 1,
                    "sender": "0",
                    "recipient": "a9b92e8a11d447639a1f1cdb1954fc48"
                }
            ],
            "timestamp": 1523528945659,
            "previous_hash": "77f2390ba87ce4f8427a7f3f2427cc463e9d0a9086e104ea2f99ed2070c08656"
        },
        {
            "index": 3,
            "proof": 35089,
            "transactions": [
                {
                    "amount": 1260,
                    "sender": "程二凡",
                    "recipient": "張小二"
                },
                {
                    "amount": 1,
                    "sender": "0",
                    "recipient": "a9b92e8a11d447639a1f1cdb1954fc48"
                }
            ],
            "timestamp": 1523528972115,
            "previous_hash": "4c1799601a670d28a1ce508c3c89de94c4f87ad59f5d89b73a1288d9f234b17e"
        },
        {
            "index": 4,
            "proof": 119678,
            "transactions": [
                {
                    "amount": 1260,
                    "sender": "李浩",
                    "recipient": "金正"
                },
                {
                    "amount": 1260,
                    "sender": "李浩",
                    "recipient": "金正"
                },
                {
                    "amount": 1260,
                    "sender": "李浩",
                    "recipient": "金正"
                },
                {
                    "amount": 1260,
                    "sender": "李浩",
                    "recipient": "金正"
                },
                {
                    "amount": 1,
                    "sender": "0",
                    "recipient": "a9b92e8a11d447639a1f1cdb1954fc48"
                }
            ],
            "timestamp": 1523529024979,
            "previous_hash": "9e4c840d8f01fa8decea1eac4fcbb8e15357fb7ddea7bd64d8a99c222ef6f147"
        },
        {
            "index": 5,
            "proof": 146502,
            "transactions": [
                {
                    "amount": 1,
                    "sender": "0",
                    "recipient": "a9b92e8a11d447639a1f1cdb1954fc48"
                }
            ],
            "timestamp": 1523585237009,
            "previous_hash": "40d003f3f756200731c4d2109be15fa718056d95bf57fe0ccaa18f8195a6e841"
        }
    ],
    "length": 5
}

區(qū)塊的結(jié)構(gòu)

首先需要說明一下區(qū)塊的結(jié)構(gòu)，每個區(qū)塊包含屬性：索引（index）豺总，時間戳（timestamp）车伞，交易列表（transactions），工作量證明喻喳，以及前一個區(qū)塊的Hash值另玖。

創(chuàng)世區(qū)塊是沒有前一個區(qū)塊的，類比Java的 List

區(qū)塊的結(jié)構(gòu)基礎(chǔ)信息：

block = {
    'index': 1,
    'timestamp': 1506057125.900785,
    'transactions': [
        {
            'sender': "發(fā)送者的銀行卡號",
            'recipient': "接受者的銀行卡號",
            'amount': 5,
        } 沸枯，{
                    "amount": 1260,
                    "sender": "李浩",
                    "recipient": "金正"
                },
                {
                    "amount": 1260,
                    "sender": "李浩",
                    "recipient": "金正"
                }
    ],
    'proof': 愿意給的轉(zhuǎn)賬手續(xù)費日矫，可以自定義,
    'previous_hash': "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
}

學(xué)習(xí)筆記只在學(xué)習(xí)區(qū)塊鏈，了解區(qū)塊鏈绑榴，屬于helloworld程序哪轿，
和真實的場景，類比接口翔怎，復(fù)雜度等都不一樣窃诉，僅在學(xué)習(xí)其原理，術(shù)語
甚至因為我自己可能有誤解～赤套，僅在為測試區(qū)塊鏈做一些準備飘痛。

新手入門資料：
3cshool
http://www.runoob.com/w3cnote/blockchain-intro.html

高手進階 以太坊
http://xc.hubwiz.com/course/5a952991adb3847553d205d1?affid=51cto