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#实验二 SQL数据定义和操作

####李奥 3130001009 ####日期：2014/10/16

##实验目的：

1. 掌握关系数据库语言SQL的使用。
2. 完成如下SQL作业能上机通过。

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set nocompatible

set nobackup
set noswapfile

set cindent
set smartindent

syntax on

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import requests
import os.path
import sys
import json

CONFIG_FILE = "./score_bomb.json"
GRADE_FILE = "./grade.json"

if not os.path.isfile(CONFIG_FILE):
    data = {}

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set nocompatible

set nobackup
set noswapfile

set cindent
set smartindent

syntax on

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set clipboard=unnamed
let g:go_bin_path = expand("~/.gotools")

set expandtab
set smarttab
set tabstop=4
set shiftwidth=4
set softtabstop=4
set shortmess=a

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Bundle "Raimondi/delimitMate"
Bundle "Valloric/YouCompleteMe"
Bundle "adimit/prolog.vim"
Bundle "klen/python-mode"
Bundle "fatih/vim-go"

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{
  "keymaps": {
    "0": { "type": "scroll.home" },
    ":": { "type": "command.show" },
    "o": { "type": "command.show.open", "alter": false },
    "O": { "type": "command.show.open", "alter": true },
    "t": { "type": "command.show.tabopen", "alter": false },
    "T": { "type": "command.show.tabopen", "alter": true },
    "w": { "type": "command.show.winopen", "alter": false },
    "W": { "type": "command.show.winopen", "alter": true },

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pragma solidity ^0.5.0;
library SafeMath {
  function mul (uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a * b;
    assert(a == 0 || c / a == b);
    {
      return c;
    }
    {
    }

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pragma solidity ^0.4.9;

contract MultiOwned{

  // pointer used to find a free slot in m_owners
  uint public m_numOwners;
  
  // the number of owners that must confirm the same operation before it is run.
  uint public m_required;

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// Await Scenario
Thread t = Thread.currentThread();
reschedule();
// Lock 3
if (L[o].owner != t && L[o].count > 0) { 
  E.remove(t);
  W[o].add(t);
  reschedule();
}
// Lock 1 & 2