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设计一个数据库系统要求：1）addRecord(userId, projectId, price)表示用户userId 给工程 projectId 投标 price。若记录中有 userId 给工程ProjectId 投标，则不加入该记录2）updateRecord(userId, projectId, price)表示更新用户userId 给工程 projectId 的投标price。若记录中没有 userId 给工程 projectId的投标，则不更新3）removeRecore(userId,

#include <iostream>#include <string>using namespace std;string unite[5]={"","十","百","千","万"}; //单位string num[10]={"零","一","二","三","四","五","六","七","八","九"}; //一个汉字占两个字节,另外再加一个'\0'字符.st...

#include<stdio.h>int main(){ int date,year,month,day; scanf("%d",&date); year=date/10000; month=date%10000/100; day=date%100; int weekAfter[7] = {0,1,2,3,4,5,6}; int weekBef...

螺旋队列内螺旋队列（顺时针）分析codeimport java.util.Scanner;/** * 〈一句话功能简述〉<br> * 〈内螺旋队列（顺时针）〉 * 21 22…… * 20 7 8 9 10 * 19 6 1 2 11 * 18 5 4 3 12 * 17 16 15 14 13 * * 输入 * 输入包含多组测试，每组测试...