commit 93fa98aa949ed02c99d27b0d2f0534f06db2216e
Author: wxy <14293288+zysysys@user.noreply.gitee.com>
Date: Fri Jul 19 10:10:38 2024 +0800
day2日考
diff --git a/.gitignore b/.gitignore
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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
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diff --git a/.idea/$PROJECT_FILE$ b/.idea/$PROJECT_FILE$
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diff --git a/.idea/.gitignore b/.idea/.gitignore
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+++ b/.idea/.gitignore
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+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
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--- /dev/null
+++ b/.idea/encodings.xml
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+
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\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
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--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
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+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
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--- /dev/null
+++ b/.idea/misc.xml
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+
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+ 用户定义
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diff --git a/.idea/qaplug_profiles.xml b/.idea/qaplug_profiles.xml
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+++ b/.idea/qaplug_profiles.xml
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\ No newline at end of file
diff --git a/.idea/setting.xml b/.idea/setting.xml
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--- /dev/null
+++ b/.idea/setting.xml
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+
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\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
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--- /dev/null
+++ b/.idea/vcs.xml
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+
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\ No newline at end of file
diff --git a/pom.xml b/pom.xml
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+++ b/pom.xml
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+
+
+ 4.0.0
+
+ com.bawei
+ day2
+ 1.0-SNAPSHOT
+
+
+ 17
+ 17
+ UTF-8
+
+
+
diff --git a/src/main/java/com/bwie/day2 b/src/main/java/com/bwie/day2
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+++ b/src/main/java/com/bwie/day2
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+
+
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('杂达', '男');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('田七', '男');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('王二', '男');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('吴八', '男');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('噶风', '女');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('杂达', '男');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('田七', '男');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('王二', '男');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('吴八', '男');
+INSERT INTO `day2`.`t_student` (`s_name`, `sex`) VALUES ('噶风', '女');
+
+
+INSERT INTO `day2`.`t_course` (`c_id`, `c_name`) VALUES (1, '语文');
+INSERT INTO `day2`.`t_course` (`c_id`, `c_name`) VALUES (2, '数学');
+INSERT INTO `day2`.`t_course` (`c_id`, `c_name`) VALUES (3, '英语');
+
+
+
+select * from t_student
+
+select * from t_course
+
+select * from stu_cou
+
+
+SELECT sex, COUNT(*) AS number FROM t_student GROUP BY sex;
+
+SELECT sex, CONCAT((COUNT(*) / (SELECT COUNT(*) FROM t_student) * 100),'%') AS percentage
+FROM t_student GROUP BY sex;
+
+
+
+
+SELECT stu_cou.c_id, t_course.c_name, COUNT(stu_cou.s_id) AS student_count
+FROM stu_cou
+JOIN t_course ON stu_cou.c_id = t_course.c_id
+GROUP BY stu_cou.c_id, t_course.c_name;
+
+
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diff --git a/src/main/java/com/bwie/image/img.png b/src/main/java/com/bwie/image/img.png
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