c语言新手 程序报错

#include <stdio.h>

#include <string.h>

int main()

{

int gg(int i)

int i

while(1){

i=0

printf(" 1.查看历史日程表\n")

printf(" 2.输入新的日程表\n")

printf(" 3.查看已完成的日程表\n")

printf(" 4.查看未完成的日程表\n")

printf(" 5.退出登录\n")

printf(" 请选择相应序号： ")

scanf("%d",&i)

if(i==5){

break

}

gg(i)

printf("\n")

printf("\n")

printf("\n")

}

}

int gg(int i){

int aa()

int bb()

int cc()

int dd()

switch(i){

case 1:

aa()break

case 2:

bb()break

case 3:

cc()break

case 4:

dd()break

}

}

int aa(){

FILE*fp

int length=1000

char str[1001]

if((fp=fopen("11s.txt","r"))==NULL){

printf("无文件")

return 0

}

while(fgets(str,length,fp)!=NULL){

printf("%s",str)}

return 1

fclose(fp)

}

int bb(){

FILE*fp

char str[400]

printf("内容如下:\n")

scanf("%s",str)

if((fp=fopen("11s.txt","a+"))==NULL){

printf("文件不存在")

return 0

}

fputs("\n",fp)

fputs(str,fp)

printf("加入成功")

fclose(fp)

return 1

}

int cc(){

FILE*fp

int length=1000

char str[1001]

printf("内容如下:\n")

if((fp=fopen("11s.txt","r"))==NULL){

printf("无文件")

return 0

}

while(fgets(str,length,fp)!=NULL){

if(strstr(str,"已完成")!=NULL){

printf("%s",str)

}

}

fclose(fp)

return 1

}

int dd(){

FILE*fp

int lenght=1000

char str[1001]

printf("内容如下:\n")

if((fp=fopen("11s.txt","r"))==NULL){

printf("无文件")

return 0

}

while(fgets(str,lenght,fp)!=NULL){

if(strstr(str,"未完成")!=NULL){

printf("%s",str)

}

}

fclose(fp)

return 1

}

#include <stdio.h>

#include <stdlib.h>

#include <malloc.h>

typedef int DataType

typedef struct Node

{

DataType elem

struct Node *top

}StackNode

typedef StackNode *Stack

void Init_Stack(Stack S)

{

S = (Stack)malloc(sizeof(StackNode))

S->top = NULL

}

int Stack_Empty(Stack S)

{

if(S->top == NULL)

{

return 1

}

else

{

return 0

}

}

DataType GetTop(Stack S)

{

if(!Stack_Empty(S))

{

return S->elem

}

else

{

printf("Noting!")

}

return 0

}

void Push(Stack S,DataType elem)

{

Stack NewNode = (Stack)malloc(sizeof(StackNode))

NewNode->elem = elem

NewNode->top = S->top

S->top = NewNode

}

DataType Pop(Stack S)

{

if(Stack_Empty(S) != 1)

{

DataType ch = GetTop(S)

Stack S1 = (S->top)->top

free(S->top)

S = S1

return ch

}

else

{

printf("Noting!")

}

return 0

}

void Conversion(int N,int r)

{

Stack s=NULL

DataType x

Init_Stack(s)

while(N)

{

Push(s,N % r)

N = N / r

}

while(Stack_Empty(s) != 1)

{

x = Pop(s)

printf("%d",x)

}

}

int main()

{

//这里是你的main函数

return 0

}

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