代码如下，运行了没问题！

#include<stdio.h>
#include<stdlib.h>
#define getpch(type) (type*)malloc(sizeof(type))
struct pcb {char name[10];char state;int nice;int ntime;int rtime;struct pcb* link;
}*ready=NULL, *p;
typedef struct pcb PCB;
char sort() {PCB *first, *second;int insert = 0;if((ready == NULL)||((p->nice) > (ready->nice))) {p->link = ready;ready = p;}else {first = ready;second = first->link;while(second != NULL) {if((p->nice)>(second->nice)) {p->link = second;first->link = p;second = NULL;insert = 1;}else {first = first->link;second = second->link;}}if(insert == 0) first->link = p;}
}
char input() {int i, num;printf("\n 请输入被调度的进程数目：");scanf("%d", &num);for(i = 0; i < num; i ++ ) {printf("\n 进程号No.%d", i);p = getpch(PCB);printf("\n 输入进程号：");scanf("%s", p->name);printf(" 输入进程优先数：");scanf("%d", &p->nice);printf(" 输入进程运行时间：");scanf("%d", &p->ntime);printf("\n");p->rtime = 0;p->state = 'W';p->link = NULL;sort();}
}
int space() {int l = 0; PCB* pr = ready;while(pr != NULL) {l ++ ;pr = pr->link;}return(l);
}
char disp(PCB* pr) {printf("\n qname \t state \t nice \t ndtime \t runtime \n");printf("%s\t", pr->name);printf("%c\t", pr->state);printf("%d\t", pr->nice);printf("%d\t", pr->ntime);printf("%d\t", pr->rtime);printf("\n");
}
char check() {PCB* pr;printf("\n ****当前正在运行的进程是：%s", p->name);disp(p);pr = ready;if(pr != NULL) printf("\n ****当前就绪队列状态为：");else printf("\n ****当前就绪队列状态为：空\n");while(pr != NULL) {disp(pr);pr = pr->link;}
}
char destroy() {printf(" 进程 [%s] 已完成.\n", p->name);free(p);
}
char running() {(p->rtime) ++ ;if(p->rtime == p->ntime)destroy();else {(p->nice) -- ;p->state = 'W';sort();}
}
int main() {int len, h = 0;char ch;input();len = space();while((len != 0) && (ready != NULL)) {ch = getchar();h ++ ;printf("\n The execute number:%d \n", h);p = ready;ready = p->link;p->link = NULL;p->state = 'R';check();running();printf("\n 按任意键继续......");ch = getchar();}printf("\n\n 所有进程已经运行完成了！\n");ch = getchar();return 0;
}