纠结了两天了 求指点
/**模拟简单的进程调度*/#include <stdio.h>#include <stdlib.h>typedef struct PCB{ char name[10]; int rtime; int priorityNum; char state; struct PCB *next;}PCB;/**初始化PCB*/PCB *initPCB(){ PCB *head; head=(PCB *)malloc(sizeof(PCB)); if(NULL==head) { exit(-1); } head->next=NULL; return head;}/** 新建一个节点，并返回*/PCB *inputValue(){ PCB *temp = NULL; temp = initPCB(); printf("please input the information of process\n"); printf("name:"); scanf("%s",temp->name); printf("run time:"); scanf("%d",&temp->rtime); printf("priorityNum:"); scanf("%d",&temp->priorityNum); temp->state = 'R'; printf("\n"); return temp;}/**找到优先级最高的进程*/void findProcess( PCB * head, PCB * pCurrent ){ if( head->next == NULL ) { head->next = pCurrent; return ; } /* 从大到小排 */ PCB* p = head->next; PCB* q = head; while( p != NULL ) { if( (pCurrent->priorityNum) > (p->priorityNum) ) { q->next = pCurrent; pCurrent->next = p; break; } q = p; p = p->next; } q->next = pCurrent;}/**打印PCB*/void printPCB( PCB * head ){ PCB *temp; temp = head->next; while( temp!=NULL ) { printf("\n process name: %s\n run time: %d\n priority num: %d\n process state:%c\n", temp->name,temp->rtime,temp->priorityNum,temp->state); temp = temp->next; } printf("\n\n");}/**运行进程*/void runProcess( PCB * head,PCB * selected )//选中一进程 优先数减一 运行时间减一 如果运行的时间为0 就将装太改为1 如果不为0 加入队列 重新比较 获得优先数最大进程 依次下去直到{ //所有的进程状态都为E 求实现 PCB *p,*q; while( selected->next != NULL ) { selected->priorityNum--; selected->rtime--; if( selected->rtime == 0 ) { selected->state = 'E'; break; } /*将运行时间不为0的进程加入队列*/ p = head->next; q = head; if( q == NULL )//空队列 { q = selected; } if( (selected->priorityNum) > (p->priorityNum) ) { q->next = selected; selected->next = p; } }}int main(){ PCB *head = NULL; PCB *temp = NULL; head = initPCB(); // 头结点为空 for(int i=0;i<3;i++) { temp = inputValue(); findProcess(head,temp); printf("=================\n"); } runProcess(head,temp); printPCB(head); return 0;}/**模拟简单的进程调度*/#include <stdio.h>#include <stdlib.h>typedef struct PCB{ char name[10]; int rtime; int priorityNum; char state; struct PCB *next;}PCB;/**初始化PCB*/PCB *initPCB(){ PCB *head; head=(PCB *)malloc(sizeof(PCB)); if(NULL==head) { exit(-1); } head->next=NULL; return head;}/** 新建一个节点，并返回*/PCB *inputValue(){ PCB *temp = NULL; temp = initPCB(); printf("please input the information of process\n"); printf("name:"); scanf("%s",temp->name); printf("run time:"); scanf("%d",&temp->rtime); printf("priorityNum:"); scanf("%d",&temp->priorityNum); temp->state = 'R'; printf("\n"); return temp;}/**找到优先级最高的进程*/void findProcess( PCB * head, PCB * pCurrent ){ if( head->next == NULL ) { head->next = pCurrent; return ; } /* 从大到小排 */ PCB* p = head->next; PCB* q = head; while( p != NULL ) { if( (pCurrent->priorityNum) > (p->priorityNum) ) { q->next = pCurrent; pCurrent->next = p; break; } q = p; p = p->next; } q->next = pCurrent;}/**打印PCB*/void printPCB( PCB * head ){ PCB *temp; temp = head->next; while( temp!=NULL ) { printf("\n process name: %s run time: %d priority num: %d process state:%c", temp->name,temp->rtime,temp->priorityNum,temp->state); temp = temp->next; } printf("\n");}/**运行进程*/void runProcess( PCB * head){ PCB *processblock = NULL; PCB *pcb = head->next; while(pcb != NULL) { pcb->rtime -= 1; pcb->priorityNum -= 1; if(pcb->rtime == 0) { pcb->state = 'E'; pcb = pcb->next; if(pcb == NULL) return ; } else { processblock = pcb; pcb = pcb->next; processblock->next = NULL; findProcess(pcb,processblock); system("cls"); } head->next = pcb; printPCB(head); getchar(); } return ;}int main(){ PCB *head = NULL; PCB *temp = NULL; head = initPCB(); // 头结点为空 for(int i=0;i<5;i++) { temp = inputValue(); findProcess(head,temp); printf("=================\n"); } runProcess(head); return 0;}