C語言小項目學(xué)生成績管理系統(tǒng)

隨著計算機(jī)科學(xué)的不斷發(fā)展，C語言已經(jīng)成為了一種非常流行的編程語言。在計算機(jī)科學(xué)領(lǐng)域，C語言被廣泛應(yīng)用于操作系統(tǒng)、網(wǎng)絡(luò)、嵌入式系統(tǒng)、游戲開發(fā)等領(lǐng)域。今天，我們將介紹一個C語言小項目學(xué)生成績管理系統(tǒng)，該系統(tǒng)可以幫助學(xué)生管理他們的學(xué)習(xí)成績，提高學(xué)習(xí)成績的管理效率。

在學(xué)生成績管理系統(tǒng)中，學(xué)生可以查看自己的成績，并可以添加、修改和刪除成績。教師也可以查看學(xué)生的成績，并可以對學(xué)生的成績進(jìn)行評分和記錄成績的評語。

下面是學(xué)生成績管理系統(tǒng)的C語言代碼實現(xiàn)：

“`
#include
#include
#include

#define MAX_STUDENTS 100
#define MAX_marks 1000

// 定義學(xué)生結(jié)構(gòu)體
typedef struct {
char name[20];
int id;
float score;
float marks;
} Student;

// 定義教師結(jié)構(gòu)體
typedef struct {
char name[20];
int id;
float grade;
} Teacher;

// 定義學(xué)生成績結(jié)構(gòu)體
typedef struct {
char name[20];
int id;
float score;
float marks;
} Score;

// 定義學(xué)生成績記錄結(jié)構(gòu)體
typedef struct {
char name[20];
Student s;
Score ss;
} ScoreRecord;

// 定義學(xué)生成績記錄函數(shù)
void addScoreRecord(ScoreRecord* record) {
ScoreRecord newRecord;
newRecord.s.name = record->s.name;
newRecord.s.id = record->s.id;
newRecord.s.score = record->s.score;
newRecord.s.marks = record->s.marks;
record->s.score = 0;
record->s. marks = 0;

printf(\”New record added successfully.\\n\”);
}

// 修改學(xué)生成績記錄函數(shù)
void modifyScoreRecord(ScoreRecord* record) {
char name[20];
printf(\”Enter student name: \”);
scanf(\”%s\”, name);

Student student = {0};
student.name = name;
student.id = record->s.id;

printf(\”Enter student ID: \”);
scanf(\”%d\”, &student.id);

if (record->s.id == student.id) {
printf(\”Record already exists.\\n\”);
return;
}

printf(\”Enter new score: \”);
float newScore = float(scanf(\”%f\”));

printf(\”Enter new marks: \”);
float newMarks = float(scanf(\”%f\”));

if (record->s.score == 0) {
printf(\”Record is empty.\\n\”);
return;
}

if (record->s.score s.score);

printf(\”Marks are adjusted to %.2f\\n\”, newMarks);

printf(\”Record updated successfully.\\n\”);

record->s.score = newScore;
record->s. marks = newMarks;
}

// 刪除學(xué)生成績記錄函數(shù)
void deleteScoreRecord(ScoreRecord* record) {
int id;
printf(\”Enter record ID: \”);
scanf(\”%d\”, &id);

for (int i = 0; i s.id) {
printf(\”Record with ID %d already exists.\\n\”, record->s.id);
return;
}
}

printf(\”Record not found.\\n\”);
}

// 顯示學(xué)生成績函數(shù)
void displayScoreRecord(ScoreRecord* record) {
printf(\”Name: \”);
printf(\”ID: \”);
printf(\”Score: \”);
printf(\”Marks: \”);
printf(\”\\n\”);
}

// 顯示學(xué)生成績函數(shù)
void displayScoreRecord2(ScoreRecord record) {
printf(\”Name: \”);
printf(\”ID: \”);
printf(\”Score: \”);
printf(\”Marks: \”);
printf(\”\\n\”);
}

// 顯示學(xué)生成績函數(shù)
void displayScoreRecord3(ScoreRecord record) {
printf(\”Name: \”);
printf(\”ID: \”);
printf(\”Score: \”);
printf(\”Marks: \”);
printf(\”\\n\”);
}

// 顯示學(xué)生成績函數(shù)
void displayScoreRecord4(ScoreRecord record) {
printf(\”Name: \”);
printf(\”ID: \”);
printf(\”Score: \”);
printf(\”Marks: \”);
printf(\”\\n\”);
}

// 學(xué)生成績管理系統(tǒng)函數(shù)
void displayScoreRecordList() {
ScoreRecord record;
printf(\”Score Record List:\\n\”);
displayScoreRecord(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord2(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord3(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord4(record);
}

// 學(xué)生成績管理系統(tǒng)函數(shù)
void displayScoreRecordList2() {
ScoreRecord record;
printf(\”Score Record List:\\n\”);
displayScoreRecord(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord2(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord3(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord4(record);
}

// 學(xué)生成績管理系統(tǒng)函數(shù)
void displayScoreRecordList3() {
ScoreRecord record;
printf(\”Score Record List:\\n\”);
displayScoreRecord(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord2(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord3(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord4(record);
}

// 學(xué)生成績管理系統(tǒng)函數(shù)
void displayScoreRecordList4() {
ScoreRecord record;
printf(\”Score Record List:\\n\”);
displayScoreRecord(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord2(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord3(record);
printf(\”Score Record List:\\n\”);
displayScoreRecord4(record);
}

int main() {
Student students[MAX_STUDENTS];
int id;

printf(\”Enter student ID: \”);
scanf(\”%d\”, &id);

for (int i = 0; i < MAX_STUDENTS; i++) {
students[i].id = id;
students[i].score = 0;
students[i]. marks = 0;
}

printf(\"Enter student name: \");
scanf(\"%s\", students[0].name);

printf(\"Enter student ID: \");
scanf(\"%d\", &students[0].id);

for (int i = 0; i < MAX_STUDENTS; i++) {
if (id == students[i].id) {
printf(\"Record already exists.\\n\");
continue;
}

printf(\"Enter student name: \");
scanf(\"%s\", students[i].name);

printf(\"Enter student ID: \");
scanf(\"%d\", &students[i].id);

if (students[i].id == id) {
printf(\"Record with ID %d already exists.\\n\", id);