diff --git a/2208/天天乐学答案/合卷-1.md b/2208/天天乐学答案/合卷-1.md new file mode 100644 index 0000000..9310451 --- /dev/null +++ b/2208/天天乐学答案/合卷-1.md @@ -0,0 +1,297 @@ +### C语言-1 + +```c +/*------------------------------------------------------------------------------ +（1）【程序设计】下列给定程序中，fun函数的功能是：分别统计字符串中大写字母和小写字母的个数。 +例如，给字符串s输入：AAaaBBbb123CCcccd，则应输出：upper＝6，lower＝8。 +------------------------------------------------------------------------------*/ +#include +void fun ( char *s, int *a, int *b) +{ +/**********Program**********/ + while(*s != '\0'){ + if(*s >= 'A' && *s <= 'Z'){ + (*a)++; + } + if(*s >= 'a' && *s <= 'z'){ + (*b)++; + } + s++; + } + + +/********** End **********/ +} +main( ) +{ + char s[100]; + int upper=0, lower=0; + printf( "\nPlease a string : " ); + gets(s); + fun(s,&upper,&lower); + printf("\n upper=%d lower=%d\n",upper,lower ); +} + +``` + + + +### C语言-2 + +```c +/*------------------------------------------------------------------------ +题目：函数fun的功能：将字符串str中第k个字符开始的n个字符逆序重排， +例如：输入1,5 输出54321abcde + 输入3,6 输出12cba543de +注意：部分源程序给出如下。请勿改动主函数main或其它函数中给出的内容，仅在 + Program-End之间填入若干语句。不要删除标志否则不得分。 +----------------------------------------------------------------------*/ +#include +#include +void fun(char *str, int k, int n ) +{ + int i,j; char t; + for(i=k-1,j=k-1+n-1;i +void fun(char s[],int b[]) +{ + int i; +/**********Program**********/ + i=0; + while(s[i] != '\0'){ + if(s[i] >= 'a' && s[i] <= 'z' || s[i] >= 'A' && s[i] <= 'Z'){ + b[0]++; + }else if(s[i] >= '0' && s[i] <= '9'){ + b[1]++; + }else if(s[i] == ' '){ + b[2]++; + }else{ + b[3]++; + } + i++; + } + +/********** End **********/ +} + +main () +{ + char s1[80];int a[4]={0}; + int k; + void fun(char s[],int b[]) ; + gets(s1); + fun(s1,a); + puts(s1); + for(k=0;k<4;k++) + printf("%4d",a[k]); +} + +``` + + + + + +### C语言-4 + +```c +/*------------------------------------------------------------------------ +程序功能：从键盘输入三个整数，比较三个数并显示相应信息，具体如下： +（1）如果三个数都相等，显示"***"； +（2）如果三个数中只有某两个数相等，显示"@@"； +（3）如果三个数互不相等，则显示"&"。 +（输出要换行） +------------------------------------------------------------------------ +注意：部分源程序给出如下。请勿改动主函数main或其它函数中给出的内容，仅在 + Program-End之间删除【?】填入若干语句。不要删除标志否则不得分。 +----------------------------------------------------------------------*/ +#include +int main() +{ + int a,b,c; + scanf("%d%d%d",&a,&b,&c); + if(a==b && b==c) + printf("***\n"); +/**********Program**********/ + else if(a==b || b==c || a==c) + + + + +/********** End **********/ +printf("@@\n"); + else printf("&\n"); + + return 0; +} + +``` + + + + + +### MySQL-1 + +```sql +#1 +CREATE TABLE t_hotel_manager( + mid INT PRIMARY KEY, + hid INT NOT NULL, + mname VARCHAR(10) NOT NULL, + mage INT NOT NULL, + mgender ENUM('男', '女', '未知'), + telephone VARCHAR(11) +); +#2 +#使用MODIFY添加主键字段为自动增长 +ALTER TABLE t_hotel_manager MODIFY mid INT AUTO_INCREMENT; +#设置自增起始值 +ALTER TABLE t_hotel_manager AUTO_INCREMENT = 1000; +#3 +INSERT INTO t_hotel_manager() +VALUES(DEFAULT, 10001, '王璐', 32, '女', NULL); +#4 +CREATE TABLE t_hotel_bak AS +SELECT * +FROM t_hotel; +#5 +UPDATE t_client c +SET c.integral = c.integral + 100 +WHERE c.cname LIKE '姚%'; +#6 tj11 +SELECT c.cname, SUM(r.price) +FROM t_booking b, t_client c, t_room r +WHERE b.cid = c.cid AND b.rid = r.rid +GROUP BY c.cid +ORDER BY 2 DESC +LIMIT 9, 1; + +#7 tj12 +SELECT h.hname, r.price +FROM t_hotel h, t_room r +WHERE h.hid = r.hid AND r.rname = '大床房' AND r.price = ( + SELECT MAX(price) + FROM t_room + WHERE rname = '大床房' +); + +#8 tj13 +SELECT h.hname, r.rname, r.price +FROM t_room r +LEFT JOIN t_booking b ON r.rid = b.rid +INNER JOIN t_hotel h ON r.hid = h.hid +WHERE b.bid IS NULL; + +#9 视图 +CREATE VIEW v_tongji AS +SELECT h.hname, SUM(r.price) +FROM t_hotel h, t_booking b, t_room r +WHERE h.hid = r.hid AND b.rid = r.rid +GROUP BY h.hid; +``` + + + +### MySQL-2 + +```sql +#1添加主键 +ALTER TABLE tb_student ADD PRIMARY KEY(student_id); + +#2设置默认值 +ALTER TABLE tb_student ALTER gender SET DEFAULT '男'; + +#3 插入记录 +INSERT INTO tb_student() +VALUES(10025, '张三', DEFAULT, '2012-10-01', 1001); + +#4 更新记录 +UPDATE tb_teacher t +SET t.teacher_age = 36 +WHERE t.teacher_name = '王老师'; + +#5 tj11 +SELECT MAX(t.teacher_age) +FROM tb_teacher t; + +#6 tj12 +SELECT c.class_name, s.student_name, s.gender +FROM tb_teacher t, tb_student s, tb_class C +where s.class_id = c.class_id AND c.teacher_id = t.teacher_id; + +#7 视图 +CREATE VIEW v_teacher AS +SELECT c.class_name, t.teacher_name, COUNT(*) +FROM tb_teacher t, tb_student s, tb_class C +WHERE s.class_id = c.class_id AND c.teacher_id = t.teacher_id +GROUP BY c.class_id, t.teacher_name; + +#8 +DELIMITER $$ +DROP TRIGGER IF EXISTS tri_updateTeacherAge; +CREATE TRIGGER tri_updateTeacherAge +BEFORE UPDATE ON tb_teacher +FOR EACH ROW +BEGIN + IF NEW.teacher_age < 30 THEN + SET NEW.age = '青年'; + ELSEIF NEW.teacher_age < 50 THEN + SET NEW.age = '中年'; + ELSE + SET NEW.age = '老年'; + END IF; +END $$ +DELIMITER ; + +#9 +DELIMITER $$ +DROP PROCEDURE IF EXISTS Pro_GetOldClassStudent; +CREATE PROCEDURE Pro_GetOldClassStudent(IN in_class_id INT, OUT out_student_name VARCHAR(50)) +BEGIN + SELECT s.student_name INTO out_student_name + FROM tb_student s, tb_class c + WHERE s.class_id = c.class_id AND c.class_id = in_class_id + ORDER BY s.birthday + LIMIT 1; +END $$ +DELIMITER ; + +CALL Pro_GetOldClassStudent(1001, @result); +SELECT @result; +``` +