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#include<stdio.h>
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/***********************
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功能:输出所有的功能目录
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输入:选择的功能编号
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输出:返回一个值给main函数
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***********************/
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int menu()
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{ int c;
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int flag;
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do
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{
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flag=1;
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printf(" ┏━━━━━━━━━━━━━━━━━━━━┓\n");
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printf(" ┃ 1.选择出发点和目的地 ┃\n");
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printf(" ┃ 2.查看景点信息 ┃\n");
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printf(" ┃ 3.修改城市信息 ┃\n");
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printf(" ┃ 4.增加景点信息 ┃\n");
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printf(" ┃ 5.输出所有城市信息 ┃\n");
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printf(" ┃ 6.输出单源路径 ┃\n");
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printf(" ┃ 7.DFS遍历输出 ┃\n");
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printf(" ┃ 8.删除节点 ┃\n");
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printf(" ┃ 9.退出系统 ┃\n");
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printf(" ┗━━━━━━━━━━━━━━━━━━━━┛\n");
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printf(" 请输入您的选择\n");
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scanf("%d",&c);
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if(c==1||c==2||c==3||c==4||c==5||c==6||c==7||c==8||c==9)
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flag=0;
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} while(flag);
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return c;
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}
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