Hello World

来源：互联网发布：百度云盘网络异常1 编辑：程序博客网时间：2024/06/05 11:16

这是第一篇在CSDN上的日志，我不知道该写些什么。

跟QQ空间不一样，感觉不能灌水。

//头文件

#ifndef _KESHE_#define _KESHE_#endif#pragma once#define STU struct stu#define USER struct user
STU{ int num; char name[50]; char sex; int age; char place[50]; char department[50]; char majar[50]; char clas[50]; STU *next; STU *pre; };
USER{ char admin[100],root[100]; USER *next; };
#define login 'a'#define exit 'b'#define add 'a'#define change 'b' #define del 'c'#define find 'd'#define output 'e'#define read 'f'#define statistics 'g'#define display 'h'#define quit 'i'
void Add();void Change();void Del();void Find();void Output();void Read();void Maintenance();int  list();void hidden();void Display();void Login();void show();void menu();

//源文件

#include<stdio.h>#include<windows.h>#include"keshe.h"#include<string.h >#include<stdlib.h>STU static *head=NULL;void Add(){STU *stu1=head,*stu2;char answer[100];if(head==NULL){printf("                     Do you want to creat a new table?(Y|N)");scanf("%s",answer);if(!strcmp("Y",answer)){stu1=stu2=(STU *)malloc(sizeof(STU));head=stu1;stu1->pre=head;stu1->next=NULL;}else{printf("                                   Back to menu.");list();}}while(stu1->next!=NULL)stu1=stu1->next;while(1){stu2=(STU *)malloc(sizeof(STU));printf("Print the num:");scanf("%d",&stu2->num);printf("Print the name:");scanf("%s",stu2->name);printf("Print the sex(m or w):");scanf("%s",&stu2->sex);printf("Print the age:");scanf("%d",&stu2->age);printf("Print the place:");scanf("%s",stu2->place);printf("Print the department:");scanf("%s",stu2->department);printf("Print the majar:");scanf("%s",stu2->majar);printf("Print the clas:");scanf("%s",stu2->clas);stu1->next=stu2;stu2->pre=stu1;stu2->next=NULL;stu1=stu2;printf("                     Do you want to add again?(Y|N)");scanf("%s",answer);if(!strcmp("Y",answer));elselist();}}void Change(){char answer[100],t=0;STU *stu1=head;printf("please scanf which num you want to change:");scanf("%d",&answer[0]);while(stu1->num!=answer[0]){if(stu1->next!=NULL)stu1=stu1->next;else{printf("your scanf is wrong");list();}}printf("num|name|sex|age|place|department|majar|clas\nwhat do you change?");scanf("%s",answer);if(!strcmp("num",answer)){while(stu1->num!=answer[0]){printf("please scanf the num after change:");scanf("%d",&answer[0]);if(stu1->next==NULL&&stu1->num!=answer[0]){stu1->num=answer[0];printf("success");list();}else{printf("the num has been had\n");system("pause");list();}}}else if(!strcmp("name",answer)){printf("please scanf the name after change:");scanf("%s",answer);strcpy(stu1->name,answer);printf("success");list();}else if(!strcmp("sex",answer)){printf("please scanf the sex after change:");scanf("%s",answer);stu1->num=answer[0];printf("success");list();}else if(!strcmp("age",answer)){printf("please scanf the age after change:");scanf("%d",&answer[0]);stu1->num=answer[0];printf("success");list();}else if(!strcmp("place",answer)){printf("please scanf the place after change:");scanf("%s",answer);strcpy(stu1->place,answer);printf("success");list();}else if(!strcmp("department",answer)){printf("please scanf the department after change:");scanf("%s",answer);strcpy(stu1->department,answer);printf("success");list();}else if(!strcmp("majar",answer)){printf("please scanf the majar after change:");scanf("%s",answer);strcpy(stu1->majar,answer);printf("success");list();}else if(!strcmp("clas",answer)){printf("please scanf the clas after change:");scanf("%s",answer);strcpy(stu1->clas,answer);printf("success");list();}else{printf("your scanf is wrong");list();}}void Del(){char answer[100];STU *stu1=head;printf("who do you del?please scanf name:");scanf("%s",answer);while(strcmp(stu1->name,answer))if(stu1->next!=NULL)stu1=stu1->next;else{printf("your scanf is wrong");list();}if(stu1->next!=NULL)stu1->pre->next=stu1->next;elsestu1->pre->next=NULL;free(stu1);printf("success");list();}void Find(){STU *stu1=head;char answer[100];printf("which num do you find?");scanf("%d",&answer[0]);while(stu1->num!=answer[0]){if(stu1->next!=NULL)stu1=stu1->next;else{printf("your scanf is wrong");list();}}printf("num|name|sex|age|place|department|majar|clas\n");printf("%d,%s,%c,%d,%s,%s,%s,%s\n",stu1->num,stu1->name,stu1->sex,stu1->age,stu1->place,stu1->department,stu1->majar,stu1->clas);system("pause");list();}void Output(){STU *stu1=head->next;FILE *fp;fp=fopen("date.dat","w");while(stu1!=NULL){fprintf(fp,"%d %s %c %d %s %s %s %s\n",stu1->num,stu1->name,stu1->sex,stu1->age,stu1->place,stu1->department,stu1->majar,stu1->clas);stu1=stu1->next;}fclose(fp);system("pause");list();}void Read(){STU *stu1,*stu2=head;FILE *fp;char t;fp=fopen("date.dat","r");stu2=(STU *)malloc(sizeof(STU));head=stu2;while(!feof(fp)){stu1=(STU *)malloc(sizeof(STU));fscanf(fp,"%d %s %c %d %s %s %s %s\n",&stu1->num,stu1->name,&stu1->sex,&stu1->age,stu1->place,stu1->department,stu1->majar,stu1->clas);stu2->next=stu1;stu1->pre=stu2;stu2=stu2->next;}stu2->next=NULL;fclose(fp);system("pause");list();}void Statistics(){STU *stu1=head;char answer[100];printf("");}void Display(){STU *stu1=head->next;printf("num|name|sex|age|place|department|majar|clas\n");while(stu1!=NULL){printf("%d,%s,%c,%d,%s,%s,%s,%s\n",stu1->num,stu1->name,stu1->sex,stu1->age,stu1->place,stu1->department,stu1->majar,stu1->clas);stu1=stu1->next;}system("pause");list();}int list(){char option=0;Sleep(1000);system("cls");if(head==NULL){printf("——————————————————————————————————————\n");printf("                                    a.add                                   \n");printf("                                    f.read                           \n");printf("                                    i.quit                 \n");printf("——————————————————————————————————————\n");while(option=getch()){if(add==option){Add();}else if(read==option){Read();}else if(quit==option){menu();}else{printf("      Your scanf is wrong!");list();}}}else{printf("——————————————————————————————————————\n");printf("                                    a.add                                   \n");printf("                                    b.change                                \n");printf("                                    c.del                                   \n");printf("                                    d.find                                  \n");if(head->next!=NULL)printf("                                    e.output                                \n");printf("                                    f.read                           \n");printf("                                    g.statistics                           \n");printf("                                    h.display                 \n");printf("                                    i.quit                            \n");printf("——————————————————————————————————————\n");while(option=getch()){if(add==option){Add();}else if(change==option)Change();else if(del==option){Del();}else if(find==option){Find();}else if(output==option){Output();}else if(read==option){Read();}else if(statistics==option){Statistics();}else if(quit==option){menu();}else if(display==option){Display();}else{printf("      Your scanf is wrong!");list();}}}}void show(){system("cls");printf("——————————————————————————————————————\n");printf("                                    a.login                                 \n");printf("                                    b.exit                                  \n");printf("——————————————————————————————————————\n");}void Login(){int n=0;char username[100],password[100];Sleep(1000);system("cls");show();printf("                                   username:");scanf("%s",&username);   printf("                                   password:");for(;password[n]!='\n';n++){password[n]=getch();if(password[n]==13){password[n]='\0';printf("\n");break;}printf("*");}if(!strcmp("admin",username)&&!strcmp(password,"root")){printf("   Login successful!");Sleep(1000);system("cls");if(head==NULL)Add();elselist();}else{printf("      Username or Password is wrong!");Login();}}void menu(){char option=0;show();while(option=getch()){if(option==login){Login();}else{printf("                          Your input is wrong");Sleep(1000);system("cls");menu();}}}void hidden()//隐藏光标{CONSOLE_CURSOR_INFO cci;GetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE),&cci);cci.bVisible=0;//赋1为显示，赋0为隐藏SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE),&cci);}void main(){hidden();while(1){menu();}}

不好意思、。。。注释比较少，这是我现在的一个坏习惯。

这是我学C的第一个激动，我终于把C语言的文件那一部分给消化了。

另外，我想每一个学C的人都有疑问吧，因为我们学的时候，敲出来的是在cmd命令框下的console程序。

我当时就一直在想怎么编写出来图形界面的程序，在图书馆找了半天书，终于看到了graphics.H这个头文件。

我一激动，立马把代码敲在了VC++ 6.0 IDE窗口下，一按F5，我的那个伤啊，error：未发现graphics.H。

然后我就在想，是不是能去百度一个头文件放进去呢？

于是#include"graphics.h"

error一排刷下来，当时脸都绿了，打开头文件一看，除了大量的宏定义跟函数声明，啥也没有。这件事也就告一段落。

现在我才明白：不止*.h在起作用。

*.lib跟动态链接库 *.dll文件也有很大的作用

提供头文件的商家怕头文件的内容暴露，做成了编译成*.dll动态链接库

最近在看《汇编语言（王爽著）》还有《windows程序设计》。

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