ubuntu 下使用GTK+、sqlite3、c语言的学生系统

使用GTK+2.0、sqlite3数据库、c语言的简易的学生管理系统
实现了基本的增删查改
效果图：
代码：
  1 #include <gtk/gtk.h>
  2 #include <stdio.h>
  3 #include <stdlib.h>
  4 #include <unistd.h>
  5 #include "sqlite3.h"
  6 
  7     GtkWidget *entry11 = NULL;
  8     GtkWidget *entry22 = NULL;
  9     GtkWidget *entry33 = NULL;
 10     sqlite3 *db = NULL;
 11 
 12 //回调
 13 
 14 void callback_1(GtkButton *button,gpointer user_data)
 15 {    char **resultp ;
 16     int nrow;
 17     int ncolumn;
 18     const char * entry_1;
 19     const char * entry_2;
 20     char sql[100];
 21     entry_1 = gtk_entry_get_text(GTK_ENTRY(entry11));
 22     entry_2 = gtk_entry_get_text(GTK_ENTRY(entry22));  
 23     sprintf(sql,"select * from root_info where user_name = '%s' and password = '%s';",entry_1,entry_2);
 24     printf("%s 
",sql);
 25     int result = 0;
 26     char *errmsg = NULL;
 27     result = sqlite3_open("test.db",&db);
 28     if(result!=SQLITE_OK)
 29     {
 30         printf("open error
");
 31         return -1;
 32     }
 33     else printf("succes
");
 34     sqlite3_get_table(db,sql,&resultp,&nrow,&ncolumn,&errmsg);
 35     printf("%d
",nrow);
 36     printf("%d
",ncolumn);
 37     //int q1=nrow;
 38     //int q2=ncolumn;
 39     
 40     
 41     //if(q1 == 1 && q2 == 2)
 42     if(nrow == 1 && ncolumn ==2)
 43     //if(nrow ==1 && ncolumn ==2)
 44     {
 45     printf("====%d
",nrow);
 46     printf("====%d
",ncolumn);
 47     gtk_widget_hide_all(user_data);
 48         menu();
 49     printf("登陆
");
 50     sqlite3_close(db);
 51     }
 52     else
 53     {    printf("%d
",nrow);
 54         printf("%d
",ncolumn);
 55         printf("登陆失败");
 56         login_warning();
 57         
 58         sqlite3_close(db);
 59     }
 60     
 61         
 62 }
 63 void callback_2(GtkButton *button,gpointer user_data)
 64 {    
 65     insert_view();
 66     
 67     
 68 }
 69 void callback_3(GtkButton *button,gpointer user_data)
 70 {    
 71     select_view();
 72     
 73     
 74 }
 75 void callback_5(GtkButton *button,gpointer user_data)
 76 {    
 77     update_view();
 78     
 79     
 80 }
 81 void callback_4(GtkButton *button,gpointer user_data)
 82 {    
 83     delete_view();
 84     
 85     
 86 }
 87 
 88 
 89 void callback_insert(GtkButton *button,gpointer user_data)
 90 {    
 91     printf("insert
");
 92     const char * entry_1;
 93     const char * entry_2;
 94     const char * entry_3;
 95     char sql[100];
 96     entry_1 = gtk_entry_get_text(GTK_ENTRY(entry11));
 97     entry_2 = gtk_entry_get_text(GTK_ENTRY(entry22));
 98     entry_3 = gtk_entry_get_text(GTK_ENTRY(entry33));  
 99     int n = atoi(entry_1);
100     int j = atoi(entry_3);
101     sprintf(sql,"insert into user_info values(%d,'%s',%d);",n,entry_2,j);
102     printf("%s 
",sql);
103     int result = 0;
104     char *errmsg = NULL;
105     result = sqlite3_open("test.db",&db);
106     if(result!=SQLITE_OK)
107     {
108         printf("open error
");
109         return -1;
110     }
111     else printf("succes");
112     int ret=sqlite3_exec(db,sql,NULL,NULL,&errmsg);
113     if(ret == SQLITE_OK)
114     {
115         printf("录入成功
");
116     }
117     sqlite3_close(db);    
118 }
119 void callback_delete(GtkButton *button,gpointer user_data)
120 {
121     
122     const char * entry_1;
123     char sql[100];
124     entry_1 = gtk_entry_get_text(GTK_ENTRY(entry11));
125     int n =atoi(entry_1);
126     sprintf(sql,"delete from user_info where id = %d;",n);
127     printf("%s
",sql);
128     int result = 0;
129     char *errmsg = NULL;
130     result = sqlite3_open("test.db",&db);
131     if(result!=SQLITE_OK)
132     {
133         printf("open error
");
134         return -1;
135     }
136     else printf("succes");
137     int ret=sqlite3_exec(db,sql,NULL,NULL,&errmsg);
138     if(ret == SQLITE_OK)
139     {
140         printf("删除成功
");
141     }
142     sqlite3_close(db);
143 
144 }
145 void callback_update(GtkButton *button,gpointer user_data)
146 {    
147     
148     const char * entry_1;
149     const char * entry_2;
150     const char * entry_3;
151     char sql[100];
152     entry_1 = gtk_entry_get_text(GTK_ENTRY(entry11));
153     entry_2 = gtk_entry_get_text(GTK_ENTRY(entry22));
154     entry_3 = gtk_entry_get_text(GTK_ENTRY(entry33));  
155     int n = atoi(entry_1);
156     int j = atoi(entry_3);
157     sprintf(sql,"update user_info set grade = %d,name = '%s' where id =%d ;",j,entry_2,n);
158     printf("%s 
",sql);
159     int result = 0;
160     char *errmsg = NULL;
161     result = sqlite3_open("test.db",&db);
162     if(result!=SQLITE_OK)
163     {
164         printf("open error
");
165         return -1;
166     }
167     else printf("succes");
168     int ret=sqlite3_exec(db,sql,NULL,NULL,&errmsg);
169     if(ret == SQLITE_OK)
170     {
171         printf("更新成功
");
172     }
173     sqlite3_close(db);    
174 }
175 int result_find(void *para,int ncolumn,char ** columnvalue,char *columnname[])
176 {
177     GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
178     GtkWidget *table = gtk_table_new(4, 6, TRUE);
179     gtk_widget_set_size_request(window,600,500);
180     gtk_window_set_title(GTK_WINDOW(window), "Student Manger System");
181     gtk_container_add(GTK_CONTAINER(window), table);
182     
183     int i;
184     char nlable[100];
185     
186      GtkWidget *label_1;
187     GtkWidget *label_2;
188     for(i = 0;i < ncolumn; i++)
189     {
190         label_1 = gtk_label_new("123 ");
191         gtk_label_set_text(GTK_LABEL(label_1),columnname[i] );
192         gtk_table_attach_defaults(GTK_TABLE(table),label_1, 2,3, i+1, i+2);
193         label_2 = gtk_label_new("123 ");
194         gtk_label_set_text(GTK_LABEL(label_2),columnvalue[i]);
195         gtk_table_attach_defaults(GTK_TABLE(table),label_2, 3,4, i+1, i+2);
196         
197     }
198     
199      g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL);
200     gtk_widget_show_all(window);
201     gtk_main();
202 
203     
204     
205     return 0;
206 
207 }
208 void callback_select_view(GtkButton *button,gpointer user_data)
209 {
210     const char * entry_1;
211     char sql[100];
212     entry_1 = gtk_entry_get_text(GTK_ENTRY(entry11));
213     int n =atoi(entry_1);
214     sprintf(sql,"select * from user_info where id = %d;",n);
215     printf("%s
",sql);
216     int result = 0;
217     char *errmsg = NULL;
218     result = sqlite3_open("test.db",&db);
219     if(result!=SQLITE_OK)
220     {
221         printf("open error
");
222         return -1;
223     }
224     else printf("succes");
225     int ret=sqlite3_exec(db,sql,result_find,NULL,&errmsg);
226     if(ret == SQLITE_OK)
227     {
228         printf("查询成功
");
229     }
230     sqlite3_close(db);
231     //select_result_view();
232     
233     
234 }
235 int main()
236 {    gtk_init(&argc,&argv);
237     login();
238     return 0;
239 }
240 
241 void login(int argc,char *argv[])
242 {
243     
244     GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
245     gtk_window_set_title(GTK_WINDOW(window), "Student Manger System");
246     GtkWidget *table = gtk_table_new(5,5,TRUE);
247     gtk_widget_set_size_request(window,500,300);
248     gtk_window_set_resizable(GTK_WINDOW(window), FALSE); 
249     
250     GtkWidget *label1 = gtk_label_new("学 生 管 理 系 统");
251     GtkWidget *label2 = gtk_label_new("版本：awsl 1.0");
252     GtkWidget *label3 = gtk_label_new("user");
253     GtkWidget *label4 = gtk_label_new("password");
254     
255     
256     entry11 = gtk_entry_new();
257     entry22 = gtk_entry_new();
258     GtkWidget *button1 = gtk_button_new_with_label("登陆");
259     
260     gtk_entry_set_text(GTK_ENTRY(entry11),"请输入用户名");
261     gtk_entry_set_text(GTK_ENTRY(entry22),"请输入密码");
262     gtk_entry_set_visibility(GTK_ENTRY(entry22),FALSE);
263     
264     
265     
266     gtk_container_add(GTK_CONTAINER(window),table);
267     gtk_table_attach_defaults(GTK_TABLE(table),label1,0,5,0,1);
268     gtk_table_attach_defaults(GTK_TABLE(table),label3,0,1,1,2);
269     gtk_table_attach_defaults(GTK_TABLE(table),label4,0,1,2,3);
270     gtk_table_attach_defaults(GTK_TABLE(table),label2,0,5,4,5);
271     
272     gtk_table_attach_defaults(GTK_TABLE(table),entry11,1,4,1,2);
273     gtk_table_attach_defaults(GTK_TABLE(table),entry22,1,4,2,3);
274     
275     gtk_table_attach_defaults(GTK_TABLE(table),button1,1,4,3,4);
276     
277     
278     g_signal_connect(button1,"pressed",G_CALLBACK(callback_1),window);
279     
280     g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL);
281     gtk_widget_show_all(window);
282     gtk_main();
283 }
284 void menu(int argc,char *argv[])
285 {
286     
287     GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
288     GtkWidget *table = gtk_table_new(7,7,TRUE);
289     gtk_widget_set_size_request(window,700,500);
290     gtk_window_set_title(GTK_WINDOW(window), "Student Manger System");
291     
292     GtkWidget *label1 = gtk_label_new("功能列表");
293     GtkWidget *label2 = gtk_label_new("版本：awsl 1.0");
294     //GtkWidget *label3 = gtk_label_new("haha");
295     
296     GtkWidget *button2 = gtk_button_new_with_label("增添学生信息");
297     GtkWidget *button3 = gtk_button_new_with_label("查询学生信息");
298     GtkWidget *button4 = gtk_button_new_with_label("删除学生信息");
299     GtkWidget *button5 = gtk_button_new_with_label("更新学生信息");
300     
301     gtk_container_add(GTK_CONTAINER(window),table);
302     gtk_table_attach_defaults(GTK_TABLE(table),label1,0,7,0,1);
303     //gtk_table_attach_defaults(GTK_TABLE(table),label3,1,7,1,7);
304     
305     gtk_table_attach_defaults(GTK_TABLE(table),button2,0,7,2,3);
306     gtk_table_attach_defaults(GTK_TABLE(table),button3,0,7,3,4);
307     gtk_table_attach_defaults(GTK_TABLE(table),button4,0,7,4,5);
308     gtk_table_attach_defaults(GTK_TABLE(table),button5,0,7,5,6);
309     gtk_table_attach_defaults(GTK_TABLE(table),label2,0,7,6,7);
310     
311     
312     g_signal_connect(button2,"pressed",G_CALLBACK(callback_2),window);
313     g_signal_connect(button3,"clicked",G_CALLBACK(callback_3),window);
314     g_signal_connect(button4,"clicked",G_CALLBACK(callback_4),window);
315     g_signal_connect(button5,"clicked",G_CALLBACK(callback_5),window);
316     
317     
318     g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL);
319     gtk_widget_show_all(window);
320     gtk_main();
321 }
322 //添加
323 void insert_view(int argc,char *argv[])
324 {    
325     GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
326     GtkWidget *table = gtk_table_new(5,6,TRUE);
327     gtk_widget_set_size_request(window,600,500);
328     gtk_window_set_title(GTK_WINDOW(window), "Student Manger System");
329     gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
330     
331     entry11 = gtk_entry_new();
332     entry22 = gtk_entry_new();
333     entry33 = gtk_entry_new();
334     
335     //GtkWidget entry_s [4] = {entry1,entry2,entry3};
336     
337     gtk_entry_set_text(GTK_ENTRY(entry11),"10086");
338     gtk_entry_set_text(GTK_ENTRY(entry22),"ayao");
339     gtk_entry_set_text(GTK_ENTRY(entry33),"99");
340     
341     GtkWidget *label1 = gtk_label_new("id");
342     GtkWidget *label2 = gtk_label_new("name");
343     GtkWidget *label3 = gtk_label_new("grade");
344     GtkWidget *label4 = gtk_label_new("输入添加信息");
345     GtkWidget *label5 = gtk_label_new("awsl 1.0");
346     
347     GtkWidget *button1 = gtk_button_new_with_label("提交");
348     
349     gtk_container_add(GTK_CONTAINER(window),table);
350     gtk_table_attach_defaults(GTK_TABLE(table),label4,0,5,0,1);
351     gtk_table_attach_defaults(GTK_TABLE(table),label1,0,1,1,2);
352     gtk_table_attach_defaults(GTK_TABLE(table),label2,0,1,2,3);
353     gtk_table_attach_defaults(GTK_TABLE(table),label3,0,1,3,4);
354     gtk_table_attach_defaults(GTK_TABLE(table),label5,0,5,5,6);
355     
356     gtk_table_attach_defaults(GTK_TABLE(table),entry11,1,4,1,2);
357     gtk_table_attach_defaults(GTK_TABLE(table),entry22,1,4,2,3);
358     gtk_table_attach_defaults(GTK_TABLE(table),entry33,1,4,3,4);
359     
360     gtk_table_attach_defaults(GTK_TABLE(table),button1,1,4,4,5);
361     
362     
363     
364     
365     
366     g_signal_connect(button1,"pressed",G_CALLBACK(callback_insert),window);
367     
368     
369     g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL);
370     gtk_widget_show_all(window);
371     gtk_main();
372     
373 }
374 //删除
375 void delete_view(int argc,char *argv[])
376 {
377     GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
378     GtkWidget *table = gtk_table_new(5,4,TRUE);
379     gtk_widget_set_size_request(window,600,400);
380     gtk_window_set_title(GTK_WINDOW(window), "Student Manger System");
381     gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
382     
383     entry11 = gtk_entry_new();
384     gtk_entry_set_text(GTK_ENTRY(entry11),"1111");
385     
386     GtkWidget *label1 = gtk_label_new("id");
387     GtkWidget *label2 = gtk_label_new("输入要删除人的id");
388     GtkWidget *label3 = gtk_label_new("awsl 1.0");
389     
390     GtkWidget *button1 = gtk_button_new_with_label("提交");
391     
392     gtk_container_add(GTK_CONTAINER(window),table);
393     gtk_table_attach_defaults(GTK_TABLE(table),label2,0,5,0,1);
394     gtk_table_attach_defaults(GTK_TABLE(table),label1,0,1,1,2);
395     gtk_table_attach_defaults(GTK_TABLE(table),label3,0,5,3,4);
396     
397     gtk_table_attach_defaults(GTK_TABLE(table),entry11,1,4,1,2);
398     
399     gtk_table_attach_defaults(GTK_TABLE(table),button1,1,4,2,3);
400     
401     g_signal_connect(button1,"clicked",G_CALLBACK(callback_delete),window);
402     
403     g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL);
404     gtk_widget_show_all(window);
405     gtk_main();
406 }
407 //更新
408 void update_view(int argc,char *argv[])
409 {
410     GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
411     GtkWidget *table = gtk_table_new(5,6,TRUE);
412     gtk_widget_set_size_request(window,600,500);
413     gtk_window_set_title(GTK_WINDOW(window), "Student Manger System");
414     gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
415     
416     entry11 = gtk_entry_new();
417     entry22 = gtk_entry_new();
418     entry33 = gtk_entry_new();
419     
420     gtk_entry_set_text(GTK_ENTRY(entry11),"10086");
421     gtk_entry_set_text(GTK_ENTRY(entry22),"ayao");
422     gtk_entry_set_text(GTK_ENTRY(entry33),"99");
423     
424     GtkWidget *label1 = gtk_label_new("id");
425     GtkWidget *label2 = gtk_label_new("name");
426     GtkWidget *label3 = gtk_label_new("grade");
427     GtkWidget *label4 = gtk_label_new("输入更新信息");
428     GtkWidget *label5 = gtk_label_new("awsl 1.0");
429     
430     GtkWidget *button1 = gtk_button_new_with_label("提交");
431     
432     gtk_container_add(GTK_CONTAINER(window),table);
433     gtk_table_attach_defaults(GTK_TABLE(table),label4,0,5,0,1);
434     gtk_table_attach_defaults(GTK_TABLE(table),label1,0,1,1,2);
435     gtk_table_attach_defaults(GTK_TABLE(table),label2,0,1,2,3);
436     gtk_table_attach_defaults(GTK_TABLE(table),label3,0,1,3,4);
437     gtk_table_attach_defaults(GTK_TABLE(table),label5,0,5,5,6);
438     
439     gtk_table_attach_defaults(GTK_TABLE(table),entry11,1,4,1,2);
440     gtk_table_attach_defaults(GTK_TABLE(table),entry22,1,4,2,3);
441     gtk_table_attach_defaults(GTK_TABLE(table),entry33,1,4,3,4);
442     
443     gtk_table_attach_defaults(GTK_TABLE(table),button1,1,4,4,5);
444     
445     g_signal_connect(button1,"clicked",G_CALLBACK(callback_update),window);
446     
447     g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL);
448     gtk_widget_show_all(window);
449     gtk_main();
450     
451 }
452 //查询
453 select_view(int argc,char *argv[])
454 {
455     GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
456     GtkWidget *table = gtk_table_new(5,4,TRUE);
457     gtk_widget_set_size_request(window,600,400);
458     gtk_window_set_title(GTK_WINDOW(window), "Student Manger System");
459     gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
460     
461     entry11 = gtk_entry_new();
462     gtk_entry_set_text(GTK_ENTRY(entry11),"10086");
463     
464     GtkWidget *label1 = gtk_label_new("id");
465     GtkWidget *label2 = gtk_label_new("输入要查询人的id");
466     GtkWidget *label3 = gtk_label_new("awsl 1.0");
467     
468     GtkWidget *button1 = gtk_button_new_with_label("查询");
469     
470     gtk_container_add(GTK_CONTAINER(window),table);
471     gtk_table_attach_defaults(GTK_TABLE(table),label2,0,5,0,1);
472     gtk_table_attach_defaults(GTK_TABLE(table),label1,0,1,1,2);
473     gtk_table_attach_defaults(GTK_TABLE(table),label3,0,5,3,4);
474     
475     gtk_table_attach_defaults(GTK_TABLE(table),entry11,1,4,1,2);
476     
477     gtk_table_attach_defaults(GTK_TABLE(table),button1,1,4,2,3);
478     
479     g_signal_connect(button1,"clicked",G_CALLBACK(callback_select_view),window);
480     
481     g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL);
482     gtk_widget_show_all(window);
483     gtk_main();
484 }
485 //提示
486 login_warning(int argc,char *argv[])
487 {
488     GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
489     gtk_widget_set_size_request(window,400,400);
490     gtk_window_set_title(GTK_WINDOW(window), "Student Manger System");
491     gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
492     GtkWidget *label = gtk_label_new("用户名或者密码错误！");
493     gtk_container_add(GTK_CONTAINER(window),label);
494     g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL);
495     gtk_widget_show_all(window);
496     gtk_main();
497 }
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原文地址：https://www.cnblogs.com/zero-vic/p/11180437.html
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ubuntu 下 使用GTK+、sqlite3、c语言的学生系统

ubuntu 下使用GTK+、sqlite3、c语言的学生系统
