Question

出现这个问题怎么回事啊C:\pro\pro.cpp(29) : error C2440: '=' : cannot convert from

代码如下：#include<stdio.h>

#include<stdlib.h>

#define SeqList struct listtype

#define MaxSize 1000

SeqList

{

int data[MaxSize];

int last;

}seq;

void fuzhi(SeqList *L)

{

int a;

printf("input number,'0' will exit\n");

scanf("%d",&a);

while((a!=0)&&(L->last<999))

{

L->last++;

if(a!=0)

L->data[L->last] = a;

scanf("%d",&a);

}

}

void main()

{ int i,j;

SeqList *a,*b,*c;

a = malloc(sizeof(SeqList));

a->last = -1;

b = malloc(sizeof(SeqList));

b->last = -1;

c = malloc(sizeof(SeqList));

c->last = -1;

fuzhi(a);printf("OK\n");

fuzhi(b);printf("OK\n");

for(i=0;i<=a->last;i++)

{

c->data[i]=a->data[i];

}

c->last = a->last;

for(i=0;i<=b->last;i++)

{

for(j=0;j<=c->last;j++)

{

if(b->data[i]==c->data[j])

break;

}

if(j>c->last) {c->last++;c->data[c->last]=b->data[i]; }

}

for(i=0;i<=c->last;i++)

{

printf("%d\t",c->data[i]);

}

printf("\n");

}
错误是：C:\pro\pro.cpp(29) : error C2440: '=' : cannot convert from 'void *' to 'struct listtype *'
Conversion from 'void*' to pointer to non-'void' requires an explicit cast
C:\pro\pro.cpp(31) : error C2440: '=' : cannot convert from 'void *' to 'struct listtype *'
Conversion from 'void*' to pointer to non-'void' requires an explicit cast

Answer 1

这样写就可以了：#includestructworder{char*name;char*no;intyear;intmenoy;};intmain(){structwordera1={"liming","441224198612213421",6,3500};printf("\tname\tno\tyear\tmenoy\t");printf("\n");printf("\t%2s\t%2s\t%d\t%d\t",a1.name,a1.no,a1.year,a1.menoy);printf("\n");return0;}自己读一下吧。

追问

这是什么呀 根本没关系好嘛