linux下bug
《------------------------------------User.c--------------------------------------》
程序代码：#include<stdio.h>
#include<stdlib.h>
#define USER_NAME 20
typedef struct User{
struct User *link;
char name[USER_NAME];
int age;
} user;
《------------------------------------test.c--------------------------------------》
程序代码：#include<stdio.h>
#include"User.c"
user *start;
user *this;
user *previous;
user *stop;
int add(){
int i,j,c;
printf("printf user number:");
scanf("%d",&j);
for(i=1;i<=j;i++){
if(i==1){
this = start = previous = (user *)malloc(sizeof(this));
}else{
this = (user *)malloc(sizeof(this));
previous->link = this;
previous = this;
};
printf("printf user %d name:",i);
getchar();
gets(this->name);
printf("printf %s age:",this->name);
scanf("%d",&(this->age));
printf("printf age is %d\n",this->age);
};
stop = this;
}
int printfs(){
this = start;
while(this!=NULL){
printf("%s ::::::: %d\n",this->name,this->age);
this = this->link;
}
}
int frees(){
while(start!=NULL){
free(start);
start = start->link;
}
}
int main(){
add();
printfs();
printfs();
frees();
}《------------------------------------运行结果--------------------------------------》
xujia@xujia-Rev-1-0:~/C/project_one$ ./one
printf user number:4
printf user 1 name:name1
printf name1 age:1
printf age is 1
printf user 2 name:name2
printf name2 age:2
printf age is 2
printf user 3 name:name3
printf name3 age:3
printf age is 3
printf user 4 name:name4
printf name4 age:4
printf age is 4
name1 ::::::: 50
name2 ::::::: 51
name3 ::::::: 52
name4 ::::::: 4
name1 ::::::: 50
name2 ::::::: 51
name3 ::::::: 52
name4 ::::::: 4
xujia@xujia-Rev-1-0:~/C/project_one$ ./one
printf user number:4
printf user 1 name:n1
printf n1 age:1
printf age is 1
printf user 2 name:n2
printf n2 age:2
printf age is 2
printf user 3 name:n3
printf n3 age:3
printf age is 3
printf user 4 name:n4
printf n4 age:4
printf age is 4
n1 ::::::: 1
n2 ::::::: 2
n3 ::::::: 3
n4 ::::::: 4
n1 ::::::: 1
n2 ::::::: 2
n3 ::::::: 3
n4 ::::::: 4
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