- 打开云+校园扶持计划如图：
- 完成注册，个人认证
- 登录并打开云+校园扶持计划点击立即购买
- 选择云服务器配置
- 操作系统：Ubuntu 16.04 64位，地区:上海，购买时长：1个月
- 如图：
- 点击确认购买
- 下单完成支付
- 进入管理中心，选择上海区如图：
Mahu MaHu6
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| def keep_decimal(origin_num, places): | |
| num_x, num_y = str(origin_num).split('.') | |
| if len(num_y) > places: | |
| num = float(num_x + '.' + num_y[0:places]) | |
| else: | |
| return origin_num | |
| return num |
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| if [ -d ~/.pip ]; | |
| then | |
| echo "~/.pip exist" | |
| else | |
| mkdir ~/.pip | |
| fi | |
| cd ~/.pip/ | |
| echo "[global]" > pip.conf | |
| echo "index-url = https://mirrors.aliyun.com/pypi/simple/" >> pip.conf | |
| echo "[install]" >> pip.conf |
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| // check metamask exist | |
| if (typeof web3 !== 'undefined') { | |
| var currentProvider = web3.currentProvider; | |
| if(currentProvider){ | |
| if(currentProvider.isMetaMask){ | |
| console.log("currentProvider is Metamask"); | |
| if(currentProvider.isConnected()){ | |
| console.log("Connected Metamask"); | |
| var web3Instance = new Web3(); |
MaHu6
/ privatekey_export_keystore.py
Created
August 8, 2018 09:38
according privatekey export keystore
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| # pip3 install web3 | |
| from web3 import Web3 | |
| import json | |
| # network = "https://ropsten.infura.io/your_key" | |
| network = "http://127.0.0.1:8545" | |
| web3 = Web3(Web3.HTTPProvider(network)) |
MaHu6
/ tencentyun_server.md
Last active
April 15, 2018 07:41
MaHu6
/ aliyun_server.md
Last active
April 15, 2018 06:17
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| # run pip3 install psutil | |
| import psutil | |
| #获取网卡名称和其ip地址，不包括回环 | |
| def get_netcard(): | |
| netcard_info = [] | |
| info = psutil.net_if_addrs() | |
| for k,v in info.items(): | |
| for item in v: | |
| if item[0] == 2 and not item[1]=='127.0.0.1': | |
| netcard_info.append((k,item[1])) |