把see夹夹读烂 2022-11-24 16:47 采纳率: 60%
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已结题

入门链表和结构运行错误,求解

谁知道这个咋改,c++,链表入门
#include <iostream>
using namespace std;
struct student
{
    int no;
    char name;
    float weight;
    student *next;
};


int main()
{
struct student s1={

   1,'li',55.0};
struct student s2={2,'wang',50.0};
struct student s3={3,'liu',60.5};
int *p=0;

student *head=NULL;*p=NULL;
s1.next=&s2;
s2.next=&s3;
s3.next=NULL;
head=&s1;
p=head;

cin>>no;
student*p=head;
while(p!=NULL)
{
    if(p->no==no)
    {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
    break;}
    p=p->next;
}//查找

*p=0;int*p1=0;
while(p!=NULL){
p1=p;
p=p->next;
if(p->no==no)break;}
p1->next=p->next;
p=NULL;//删除

    return 0;
}

运行结果及报错内容

生成已完成,但出现错误。

 *  终端进程启动失败(退出代码: -1)。 
 *  终端将被任务重用,按任意键关闭。 

 *  正在执行任务: C/C++: g++.exe 生成活动文件 

正在启动生成...
C:\mingw64\bin\g++.exe -fdiagnostics-color=always -g C:\Users\HUAWEI\Desktop\abc.cpp -o C:\Users\HUAWEI\Desktop\abc.exe
C:\Users\HUAWEI\Desktop\abc.cpp:14:6: warning: multi-character character constant [-Wmultichar]
    1,'li',55.0};
      ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:15:22: warning: multi-character character constant [-Wmultichar]
 struct student s2={2,'wang',50.0};
                      ^~~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:16:22: warning: multi-character character constant [-Wmultichar]
 struct student s3={3,'liu',60.5};
                      ^~~~~
C:\Users\HUAWEI\Desktop\abc.cpp: In function 'int main()':
C:\Users\HUAWEI\Desktop\abc.cpp:14:15: error: narrowing conversion of '27753' from 'int' to 'char' inside { } [-Wnarrowing]
    1,'li',55.0};
               ^
C:\Users\HUAWEI\Desktop\abc.cpp:15:33: error: narrowing conversion of '2002873959' from 'int' to 'char' inside { } [-Wnarrowing]
 struct student s2={2,'wang',50.0};
                                 ^
C:\Users\HUAWEI\Desktop\abc.cpp:16:32: error: narrowing conversion of '7104885' from 'int' to 'char' inside { } [-Wnarrowing]
 struct student s3={3,'liu',60.5};
                                ^
C:\Users\HUAWEI\Desktop\abc.cpp:19:23: warning: converting to non-pointer type 'int' from NULL [-Wconversion-null]
 student *head=NULL;*p=NULL;
                       ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:24:3: error: cannot convert 'student*' to 'int*' in assignment
 p=head;
   ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:26:6: error: 'no' was not declared in this scope
 cin>>no;
      ^~
C:\Users\HUAWEI\Desktop\abc.cpp:27:9: error: conflicting declaration 'student* p'
 student*p=head;
         ^
C:\Users\HUAWEI\Desktop\abc.cpp:17:6: note: previous declaration as 'int* p'
 int *p=0;
      ^
C:\Users\HUAWEI\Desktop\abc.cpp:30:11: error: request for member 'no' in '* p', which is of non-class type 'int'
     if(p->no==no)
           ^~
C:\Users\HUAWEI\Desktop\abc.cpp:31:15: error: request for member 'no' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
               ^~
C:\Users\HUAWEI\Desktop\abc.cpp:31:27: error: request for member 'name' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                           ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:31:41: error: request for member 'weight' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                         ^~~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:31:49: error: 'endle' was not declared in this scope
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                                 ^~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:31:49: note: suggested alternative: 'rename'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                                 ^~~~~
                                                 rename
C:\Users\HUAWEI\Desktop\abc.cpp:33:10: error: request for member 'next' in '* p', which is of non-class type 'int'
     p=p->next;
          ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:39:6: error: request for member 'next' in '* p', which is of non-class type 'int'
 p=p->next;
      ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:40:7: error: request for member 'no' in '* p', which is of non-class type 'int'
 if(p->no==no)break;}
       ^~
C:\Users\HUAWEI\Desktop\abc.cpp:41:5: error: request for member 'next' in '* p1', which is of non-class type 'int'
 p1->next=p->next;
     ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:41:13: error: request for member 'next' in '* p', which is of non-class type 'int'
 p1->next=p->next;
             ^~~~

生成已完成,但出现错误。

 *  终端进程启动失败(退出代码: -1)。 
 *  终端将被任务重用,按任意键关闭。 

 *  正在执行任务: C/C++: g++.exe 生成活动文件 

正在启动生成...
C:\mingw64\bin\g++.exe -fdiagnostics-color=always -g C:\Users\HUAWEI\Desktop\abc.cpp -o C:\Users\HUAWEI\Desktop\abc.exe
C:\Users\HUAWEI\Desktop\abc.cpp:16:6: warning: multi-character character constant [-Wmultichar]
    1,'li',55.0};
      ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:17:22: warning: multi-character character constant [-Wmultichar]
 struct student s2={2,'wang',50.0};
                      ^~~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:18:22: warning: multi-character character constant [-Wmultichar]
 struct student s3={3,'liu',60.5};
                      ^~~~~
C:\Users\HUAWEI\Desktop\abc.cpp: In function 'int main()':
C:\Users\HUAWEI\Desktop\abc.cpp:16:15: error: narrowing conversion of '27753' from 'int' to 'char' inside { } [-Wnarrowing]
    1,'li',55.0};
               ^
C:\Users\HUAWEI\Desktop\abc.cpp:17:33: error: narrowing conversion of '2002873959' from 'int' to 'char' inside { } [-Wnarrowing]
 struct student s2={2,'wang',50.0};
                                 ^
C:\Users\HUAWEI\Desktop\abc.cpp:18:32: error: narrowing conversion of '7104885' from 'int' to 'char' inside { } [-Wnarrowing]
 struct student s3={3,'liu',60.5};
                                ^
C:\Users\HUAWEI\Desktop\abc.cpp:21:23: warning: converting to non-pointer type 'int' from NULL [-Wconversion-null]
 student *head=NULL;*p=NULL;
                       ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:26:3: error: cannot convert 'student*' to 'int*' in assignment
 p=head;
   ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:28:6: error: 'no' was not declared in this scope
 cin>>no;
      ^~
C:\Users\HUAWEI\Desktop\abc.cpp:29:9: error: conflicting declaration 'student* p'
 student*p=head;
         ^
C:\Users\HUAWEI\Desktop\abc.cpp:19:6: note: previous declaration as 'int* p'
 int *p=0;
      ^
C:\Users\HUAWEI\Desktop\abc.cpp:32:11: error: request for member 'no' in '* p', which is of non-class type 'int'
     if(p->no==no)
           ^~
C:\Users\HUAWEI\Desktop\abc.cpp:33:15: error: request for member 'no' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
               ^~
C:\Users\HUAWEI\Desktop\abc.cpp:33:27: error: request for member 'name' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                           ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:33:41: error: request for member 'weight' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                         ^~~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:33:49: error: 'endle' was not declared in this scope
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                                 ^~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:33:49: note: suggested alternative: 'rename'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                                 ^~~~~
                                                 rename
C:\Users\HUAWEI\Desktop\abc.cpp:35:10: error: request for member 'next' in '* p', which is of non-class type 'int'
     p=p->next;
          ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:41:6: error: request for member 'next' in '* p', which is of non-class type 'int'
 p=p->next;
      ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:42:7: error: request for member 'no' in '* p', which is of non-class type 'int'
 if(p->no==no)break;}
       ^~
C:\Users\HUAWEI\Desktop\abc.cpp:43:5: error: request for member 'next' in '* p1', which is of non-class type 'int'
 p1->next=p->next;
     ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:43:13: error: request for member 'next' in '* p', which is of non-class type 'int'
 p1->next=p->next;
             ^~~~

生成已完成,但出现错误。

 *  终端进程启动失败(退出代码: -1)。 
 *  终端将被任务重用,按任意键关闭。 

 *  正在执行任务: C/C++: g++.exe 生成活动文件 

正在启动生成...
C:\mingw64\bin\g++.exe -fdiagnostics-color=always -g C:\Users\HUAWEI\Desktop\abc.cpp -o C:\Users\HUAWEI\Desktop\abc.exe
C:\Users\HUAWEI\Desktop\abc.cpp:16:6: warning: multi-character character constant [-Wmultichar]
    1,'li',55.0};
      ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:17:22: warning: multi-character character constant [-Wmultichar]
 struct student s2={2,'wang',50.0};
                      ^~~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:18:22: warning: multi-character character constant [-Wmultichar]
 struct student s3={3,'liu',60.5};
                      ^~~~~
C:\Users\HUAWEI\Desktop\abc.cpp: In function 'int main()':
C:\Users\HUAWEI\Desktop\abc.cpp:16:15: error: narrowing conversion of '27753' from 'int' to 'char' inside { } [-Wnarrowing]
    1,'li',55.0};
               ^
C:\Users\HUAWEI\Desktop\abc.cpp:17:33: error: narrowing conversion of '2002873959' from 'int' to 'char' inside { } [-Wnarrowing]
 struct student s2={2,'wang',50.0};
                                 ^
C:\Users\HUAWEI\Desktop\abc.cpp:18:32: error: narrowing conversion of '7104885' from 'int' to 'char' inside { } [-Wnarrowing]
 struct student s3={3,'liu',60.5};
                                ^
C:\Users\HUAWEI\Desktop\abc.cpp:21:23: warning: converting to non-pointer type 'int' from NULL [-Wconversion-null]
 student *head=NULL;*p=NULL;
                       ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:26:3: error: cannot convert 'student*' to 'int*' in assignment
 p=head;
   ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:28:6: error: 'no' was not declared in this scope
 cin>>no;
      ^~
C:\Users\HUAWEI\Desktop\abc.cpp:29:9: error: conflicting declaration 'student* p'
 student*p=head;
         ^
C:\Users\HUAWEI\Desktop\abc.cpp:19:6: note: previous declaration as 'int* p'
 int *p=0;
      ^
C:\Users\HUAWEI\Desktop\abc.cpp:32:11: error: request for member 'no' in '* p', which is of non-class type 'int'
     if(p->no==no)
           ^~
C:\Users\HUAWEI\Desktop\abc.cpp:33:15: error: request for member 'no' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
               ^~
C:\Users\HUAWEI\Desktop\abc.cpp:33:27: error: request for member 'name' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                           ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:33:41: error: request for member 'weight' in '* p', which is of non-class type 'int'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                         ^~~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:33:49: error: 'endle' was not declared in this scope
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                                 ^~~~~
C:\Users\HUAWEI\Desktop\abc.cpp:33:49: note: suggested alternative: 'rename'
     {cout<<p->no<<" "<<p->name<<" "<<p->weight<<endle;
                                                 ^~~~~
                                                 rename
C:\Users\HUAWEI\Desktop\abc.cpp:35:10: error: request for member 'next' in '* p', which is of non-class type 'int'
     p=p->next;
          ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:41:6: error: request for member 'next' in '* p', which is of non-class type 'int'
 p=p->next;
      ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:42:7: error: request for member 'no' in '* p', which is of non-class type 'int'
 if(p->no==no)break;}
       ^~
C:\Users\HUAWEI\Desktop\abc.cpp:43:5: error: request for member 'next' in '* p1', which is of non-class type 'int'
 p1->next=p->next;
     ^~~~
C:\Users\HUAWEI\Desktop\abc.cpp:43:13: error: request for member 'next' in '* p', which is of non-class type 'int'
 p1->next=p->next;
             ^~~~


我的解答思路和尝试过的方法

就是想单纯试试学的链表的插入和删除,
用了结构,感觉写的对的啊,是不是电脑编程环境的问题,因为之前就感觉本电脑编程环境有点问题,请多多指教,感谢!

我想要达到的结果

调试好就行

  • 写回答

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      • 系统已结题 12月9日
      • 已采纳回答 12月1日
      • 创建了问题 11月24日

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