用C语言编写代码实现：请输入若干个学生成绩，5到10人，超过范围提示错误信息后，重新输入；每个学生的成绩不能超过100或小于0，超过范围提示错误信息后，重新输入； 统计输出最高分、最低分、平均成绩，标准差，并按成绩输出从高到低排序

在C语言中，我们可以使用数组和循环结构来实现这个功能。这里是一个简单的示例：

#include <stdio.h>
#include <math.h> // 包含用于计算标准差的头文件

#define MAX_STUDENTS 10

// 函数声明
double calculate_average(int scores[], int num_students);
double calculate_std_deviation(int scores[], int num_students);

int main() {
    int scores[MAX_STUDENTS];
    int num_students = 0;
    int score;

    printf("请输入学生人数(5到10人): ");
    scanf("%d", &num_students);

    while (num_students < 5 || num_students > 10) { // 检查输入范围
        printf("输入无效! 请重新输入(5到10人): ");
        scanf("%d", &num_students);
    }

    for (int i = 0; i < num_students; ++i) {
        printf("请输入第%d位学生的成绩: ", i + 1);
        scanf("%d", &score);

        if (score < 0 || score > 100) { // 检查成绩范围
            printf("错误！成绩应介于0和100之间，请重新输入: ");
            continue;
        }
        scores[i] = score;
    }

    double max_score = scores[0], min_score = scores[0]; // 初始值
    double sum = 0;

    for (int i = 0; i < num_students; ++i) {
        max_score = (scores[i] > max_score) ? scores[i] : max_score;
        min_score = (scores[i] < min_score) ? scores[i] : min_score;
        sum += scores[i];
    }

    double average = calculate_average(scores, num_students);
    double std_dev = calculate_std_deviation(scores, num_students);

    printf("最高分: %d\n", max_score);
    printf("最低分: %d\n", min_score);
    printf("平均成绩: %.2f\n", average);
    printf("标准差: %.2f\n", std_dev);

    // 按成绩从高到低排序并输出
    for (int i = 0, j = num_students - 1; i < j; ++i, --j) {
        if (scores[i] < scores[j]) {
            int temp = scores[i];
            scores[i] = scores[j];
            scores[j] = temp;
        }
    }

    printf("成绩从高到低排序:\n");
    for (int i = 0; i < num_students; ++i) {
        printf("%d ", scores[i]);
    }

    return 0;
}

// 辅助函数：计算平均值和标准差
double calculate_average(int scores[], int num_students) {
    return (double)sum / num_students;
}

double calculate_std_deviation(int scores[], int num_students) {
    double mean = calculate_average(scores, num_students);
    double variance = 0;
    for (int i = 0; i < num_students; ++i) {
        variance += pow(scores[i] - mean, 2);
    }
    return sqrt(variance / num_students);
}