1.求C语言源代码 题目 学生成绩管理系统
2.用C语言写的源码计算器源代码
3.请问哈，那能找到个简单的源码整站ASP源代码，有基本的源码功能就可以，后台好操作，源码完整
4.7 款可替代 top 命令的源码工具！
求C语言源代码 题目 学生成绩管理系统
#include <cstdlib>
#include <iostream>
using namespace std;
int main(int argc,源码神马影院源码苹果cms char *argv[])
{ #define UP
#define DOWN
#define INSERT
#define DEL
#define ENTER
#define KEY
#define KEY
#define KEY
#define KEY
#define KEY A
#define KEY B
#define KEY C
#define KEY D
#define KEY E
#define KEY F
#define KEY G
#define KEY H
#define KEY I
#define KEY K
#define KEY L
#define KEY M
#define KEY N
#define KEY O
#define KEY P
#define KEY Q
#define KEY R
#define KEY S
#define KEY T
#define KEY U
#define KEY V
#define KEY W
#define KEY X
#define KEY Y
#define KEY Z
#define ALT F2
#define ALT F6
#define CTRL 4
#define SHIFT 1
#define ESC 1
#define BACKSPACE
#define LEN sizeof(struct student)
/*菜单选项。下拉标志*/
int menu x yes=1;
int menu y yes=0;
int menu x=1;
int menu x old=0;
int menu y1=1,源码 menu y3=1;
/*保存文件名*/
char filename[]="NONAME.dat";
/*开辟保存数据的空间*/
void *buf=0;
int left,top,right,bottom;
/*开辟保存数据的空间*/
struct student
{ long num;
char name[];
float h maths;
float english;
float c;
float sum;
int s sum;
struct student*next;
};
struct student*head=0,*p1,*p2;
int record n;
char key buf[];
long student number=0;
char student name[];
float student score=0;
/*读键扫描码*/
char get key(void)
{ AH=0; int (0X); return( AH); }
/*显示字符*/
void show char(char z)
{ AL=z; AH=0x0e; int (0x);}
/*测试是否有键输入*/
int key pressed(void)
{ AH=0x0b; int (0x); if( AL==0) return(0); else return(1);}
/*退出程序*/
voidquit（void）
{ void free data(void);void restore menu(void); free data();
restore menu(); window(1,1,,,0x0f);
cur show(); gotoxy(1,1); exit(1);
}
/*回到dos提示符*/
void os shell(void)
{ void mainmenu show(void);
window(1,1,,,0x0f);
cur show(); gotoxy(1,1); system("");
mainmenu show();
}
/*主窗口文字*/
void main menu 1(void)
{ int i,j; char*p;
char*mainmenu word[]={ "File ","Save ","Options ","About me"};
if(menu x!=menu x old||!menu y yes)
{ p=mainmenu word[0];
putstr(4,1,0x,p,);
for(i=0;i<;i++) if(*p++<='Z') putchar(i+4,1,*(p-1),0x);
p=mianmenu word[0];
if(menu x yes)
for(i=0;j=0;i<;i++)
{ it('A'<=*p&&*(p+1)=='')break;
putchar(i+4,1,*p,0x0f); }
p++; }
}
}
void main menu 2(void)
{ int i; int len; char *p;
char*mainmenu word[6]={ "F1-Help","F2-Save","F5-OS shell","F-Menu","Message"};
void main box(void); main box();
p=mainmenu word[0]; putstr(2,,0x,p,);
for(i=0;i<;i++) { if(*p=='F'||('0'<=*p&&*p<='9'))putchar(i+2,*p,0x); p++; }
p=mainmenu word[4]; putstr(,,0x,p,9); len=strlen(filename);
putchar(-len/2-1,2,'',0x);
for(p=filename,i=0;*p!=0;p++;i++) putchar(-len/2+i,2,*p,0x);
putchar(-len/2+len,2,'',0x);
}
/*主窗口线框*/
void main box(void)
{ int i;
for(i=1;i<=;I++) { putchar(i,2,,0x); putchar(i,,,0x);putchar(i,,,0x);}
for(i=1;i<=;i++) { putchar(1,i,,0x); putchar(,i,,0x); }
putchar(1,2,,0x); putchar(,2,,0x); putchar(1,,,0x);
putchar(,,,0x); putchar(1,,,0x); putchar(,,,0x);
}
/*显示主窗口菜单*/
voidmianmenu show (void)
{ textmode set(); cur hide();
window(1,1,,,0x1e);
window(1,1,,1,0x);
window(1,,,,0x);
main menu ; main menu ;
}
/*显示下拉菜单*/
void menu show (void)
{ int i;
char*submenu word[][5]={ { "New file F4","Open file F3","OS shell F5","Quit Alt-X"},
p"Input F6","Delete F8","Update F9","query F","Sort F"}};
switch(menu x)
{ case 1:
if(menu x!=menu x old)
{ menu x old=menu x; menu window(3,2,,8); menu box(3,2,,8,3,0);}
for(i=0;i<2;i++)
{ putstr(4,3+i,0x,submenu word[0][i],);
putchar(5,3+i,*(submenu word[0][i]+1),0x); }
for(i=3;i<5;i++) putstr(4,3+i,0x7-,submenu word[0][i-1],);
putchar(6,6,*(submenu word[0][2]+2),0x);
putchar(5,7,*(submenu word[0][3]+1),0x);
window(4,2+menu y1,,2+menu y1,0x0f);
if(menu y1<=2)
putstr(4,2+menu y1,0x0f,submenu word[0][menu y1-1],);
else
putstr(4,2+menu y1,0x0f,submenu word[0][menu y1-2],); break;
case 2:menu x old=menu x; menu window(,2,,8);}
for(i=0;i<5;i++)
{ putstr(,3+i,0x,submenu word[1][i],);
putchar(,3+i,*(submenu word[1][i]+1,0x); }
window(,2+menu y3,,2+menu y3,0x0f);
putstr(,2+menu y3,0x0f,submenu word[1][menu y3-1],); break;
case 4:menu x old=menu x; }
}
/*清空键盘缓冲*/
void clr buf(void){ key buf[1]=0;}
void free data(void)
{ struct student*pa,*pb;
if(head)
{ pb=pa=head;
do{ pb=pa; pa=pb->next; free(pb);}while(pa!=0);head=0; }
}
/*姓名处理*/
int string name(void)
{ int i,j;
if(key buf[1]==0) return(0);
for(i=2,j=0;i<=key buf[1]+1;i++;j++)
student name[j]='\0'; return(1);}
/*输入数据*/
voidinput（int flag）
{ int i; char*s1="NO. Name H maths English C\\C++ ";
char*s2=" | | | | ";
char*title="INPUT"; menu window(,,,); window(,,,,0x);
putstr(,,0x,title,7); putstr(,,0x,s1,);
if(head==0)
{ head=p1=p2=(struct student*)malloc(LEN);if(!head)memory error();
p1->next=0;
else{
for(p1=head,record n=0;p1!=0;record n++)
{ p2=p1; p1=p2->next; }
p1=(struct student*)malloc(LEN);
if(!p1)memory error();
p2->next=p1; }
while(1)
{ record n++; putstr(,,0x,s2,);
if(flag==1)
{ gotoxy(,); printf("Record%d",record n); }
do{ window(,,,,0x);
if(!getstring(,,))goto out ;
}while(!getstring number());
p1->num=student number;
do{ if(!getstring(,,)) goto out;
}while(!string name());
strcpy(pi->name,student name);
for(i=1;i<=3;i++)
{ do{ window(+(i-1)*8,,0x);
if(!getstring(+(i-1)*8,,5)) gotoout;
}while(!string score());
if(i==1)p1->h maths=student score;
if(i==2)pi->english=student score;
if(i==3)p1->c=student score; }
p1->sum=0.0; p1->s num=0;
if(flag==2){ record n--;goto out;}
p2=p1;
p1=(struct student*)malloc(LEN);
if(!p1)memory error();
p1->next=0; p2->next=p1; }
out: cur hide(); window(,,,,0x1e);
if(flag==1) { if(head==p1)head=0; free(p1); p2->next=0; info(1); record n--; }
menu x yes=1; main menu 1();
}
/*查看是否有该成绩*/
struct student* search(int flag)
{ struct student8pa,*pb; if(head==0)return(0); pb=pa=head;
if(flag==1)
{ if(head->num==student number) return(head-1);
do{ if(pa->num==student number) return(pb);
pb=pa; pa=pb->next;} while(pa!=0); }
return (0);
}
/*查询，删除，源码修改对话框*/
struct student*msg box(int which)
{ int flag; int key; char*p="<-A B->"; menu window(,源码,,); gotoxy(,);
printf("Number OR Name"); window(,,,,0x); gotoxy(,);
printf(" | "); gotoxy(,);
switch(which)
{ case 1:printf("Delete");break;
case 2:printf("Update");break;
case 3:printf("Query");break; }
do{ while(!key pressed())
now time();
key=get key(); if(key==KEY A) { flag=1;break;}
if(key==KEY B) { flag=2;break;} printf("\");
}while(1);
putstr(,,0x,p,7);
if(flag==1)
{ do{
gotoxy(,); printf(" | "):
if(!getstring(,,)) goto out;
}while(!string number());
window(,,,,0x1e); return(search(1)); }
else
{ do{ gotoxy(,); printf(" | ");
if(!getstring(,,)) goto out;
}while(!string name());
window(,,,,0x1e); return(0);}
/*删除记录*/
void delete(void)
{ struct student*pa,*pb; pb=msg box(1); if(pb==0)info(3);
else
{ if(pb==(head-1))
{ pb=head; if(pb->next==0) head=0;
else head=pb->next; }
else
{ if(pb->next->next==0) { pb->next=pa; } }
record n--; info(2); }}
/*删除记录*/
void update(void)
{ int i; struct student*p; i=record n; p=msg box(2;
if(p==0)info(3);
else
{ input(2);
if(i==record n)
{ if(p==(head-1)){
head->num=p1->num; strcpy(head->name,p1->name);
head->h maths=p1->h maths; head->english=p1->english;
head->c=p1->c; free(p1); p2->next=0; }
else { p->next->num=p1->num; strcpy(p->next->name,p1->name);
p->next->h maths=p1->h maths; p->next->english=p1->english;
p->next->c=p1->c; free(p1); p2->next=0; }
info(4); }
else { record n--;p2->next=0;free(p1);info(5);} }}
/*查询成绩*/
void query（void）
{ struct student*p,*pa,*pb; int key ,flag,i,j;
char*str="NO. Name H matns English C\\C++ Sum S NO.";
char*sm="NO. Name h maths English C\\C++ (who fails)";
menu window(,,,); gotoxy(,); printf("Find Fail");
putchar(,,'A',0xe4); putchar(,,'B',0xe4);
do{ if(!key pressed()) now time();
key=get key();
if(key==KEY A){ flag=1;break;}
if(key==KEY B){ flag=2;break;}
printf("\"); }while(1);
window(,,,,0x1e); if(flag==1)
{ p=msg box(3); if(p==0) info(3);
else{ window(6,5,,,0x0e); window(5,4,,,0x5e); window(6,5,,,0x0e);
putstr(,4,0x5a,str,); gotoxy(6,6);
if(p!=(head-1)){ pa=p->next;p=pa;}
else p=head;
printf("%d%s%8.1f%9.1f%9.1f%9.1f%6d\n",\
p->num,p->name,p->h maths,p->english,p->c,p->sum,p->s sum);
}}
if(flag==2)
{ window(6,5,,,0x0e);window(5,4,,,0x5e); window(6,5,,,0x0e);
putchar(,4,0x5a,sm,); if(head)
{ pa=head; j=0;
do{ j++; i=0; window(6,5,,,0x0e); gotoxy(,);
printf("Page%d",j);
do
{ if(pa->c<||pa->h maths<||pa->english<)
{ gotoxy(6,6+i); i++;
printf("%d%s%8.1f%9.1f%9.1f%9.1f%6d\n",\
p->num,p->name,p->h maths,p->english,p->c,p->sum,p->s sum);}
pb=pa; pa=pb->next; }while(i!=&&pa!=0);
while(!key pressed()) now time();
get key(); }while(pa!=0);
goto out;}}
while(!key pressed())
now time();get key();
out:window(5,4,,,0x1e);}
/*成绩排名*/
void sort(void)
{ int i,j,n,flag; struct student*pa=0,*pb=0;
struct student*p[],*pmin;
char*str="NO. Name H maths English C\\C++ Sum S NO.";
window(6,5,,,0x0e); window(5,4,,,0x5e); window(6,5,,,0x0e);
putstr(,4,0x5a,str,); window(,,,,0x5b);
if(head!=0)
{ i=0; pb=pa=head;
do
{ p[i]=pa; i++; pa->sum=pa->h maths+pa->english+pa->c;
pb=pa; pa=pb->next; }while(pa!=0);
for(n=record n-1,i=0;i<n;i++)
{ flag=0;
for(j=0;j<n-i;j++)
if(p[j]->sum<p[j+1]->sum)
{ pmin=p[j]; p[j]=p[j+1]; p[j+1]=pmin; flag=1; }
if(flag==0)break; }
head=pb=pa=p[0]; head->s sum=1;
if(record n>1)
for(i=1;i<record n;i++) { pa->s sum=i; pb=pa; pa=pb->next=p[i];}
p2=p1=p[record n-1]; p1->s sum=record n;
p1->next=0; pb=pa=head;
j=0;
do{
j++;i=0; window(6,5,,,0x0e); gotoxy(,); printf("Page%d",j);
do
{ gotoxy(6,6+i); i++;
printf("%d%s%8.1f%9.1f%9.1f%9.1f%6d\n",\
p->num,p->name,p->h maths,p->english,p->c,p->sum,p->s sum);}
pb=pa; pa=pb->next; }while(i!=&&pa!=0);
while(!key pressed()) now time();
get key(); }while(pa!=0);
goto out;}
while(!key pressed())
now time();get key();
out:window(5,4,,,0x1e);}
/*输入文件名*/
int input filename（int m）
{ char*p; int fp; menu window(,,,);
window(,,,,0x);
gotoxy(,); printf("File name");
if(!getstring(,,)) goto no;
if(key buf[1]==0) goto no;
p=key buf+2; key buf[key buf[1]+2]='\0';
if(fp=fopen(p,"rb+"))==0)
{ if(m==2) goto no; if(fp=fopen(p,"wb+"))==0 goto no; }
fclose(fp); strcpy(filename,p);
yes: window(,,,,0x1e);
return(1);
no: window(,,,,0x1e);
return(0);
}
/*新建文件*/
void new file（void）
{ int fp;
if(input filename(1)==0) info(9;
else
{ main menu 2(); free data(); fp=fopen(filename,"wb+"); fclose(fp); info(); }
}
/*打开文件*/
void open file(void)
{ struct student*pa,*pb; int fp;
if(input filename(2)==0)info(6);
else
{ free data(); head=pb=pa=(struct student*)malloc(LEN); fp=fopen(filename,"rb+";
fread(&pa->num,LEN,1,fp);}
info(8); fclose(fp); input(1); }}
/*保存文件*/
void save fiel(void)
{ struct student8pa,*pb; int fp;
if((fp=fopen(filename,"rb+"))==0) fp=fopen(filename,"wb+");
pb=pa=head;
if(fp!=0&&head!=0)
{ do{ fwrite(&pa->num,LEN,1,fp); pb=pa; pa=pb->next;}while(pa!=0);
fclose(fp); }
info(7);
}
void about me(void)
{ int i; char*title="About Me"; char*str[]={ " I'M A BIG.BIG WORLD. "};
menu window(,5,,); putstr(,5,0x,title,);
for(i=0;i<;i++)putstr(,6+i,0x,str[i],);
while(!key pressed()) now time();
get key(); window(,5,,,0x1e);
}
system("PAUSE");
return EXIT_SUCCESS;
}
用C语言写的计算器源代码
#include<stdio.h>
#include<iostream.h>
#include<stdlib.h>
#include<string.h>
#include<ctype.h>
typedef float DataType;
typedef struct
{
DataType *data;
int max;
int top;
}Stack;
void SetStack(Stack *S,int n)
{
S->data=(DataType*)malloc(n*sizeof(DataType));
if(S->data==NULL)
{
printf("overflow");
exit(1);
}
S->max=n;
S->top=-1;
}
void FreeStack(Stack *S)
{
free(S->data);
}
int StackEmpty(Stack *S)
{
if(S->top==-1)
return(1);
return(0);
}
DataType Peek(Stack *S)
{
if(S->top==S->max-1)
{
printf("Stack is empty!\n");
exit(1);
}
return(S->data[S->top]);
}
void Push(Stack *S,DataType item)
{
if(S->top==S->max-1)
{
printf("Stack is full!\n");
exit(1);
}
S->top++;
S->data[S->top]=item;
}
DataType Pop(Stack *S)
{
if(S->top==-1)
{
printf("Pop an empty stack!\n");
exit(1);
}
S->top--;
return(S->data[S->top+1]);
}
typedef struct
{
char op;
int inputprecedence;
int stackprecedence;
}DataType1;
typedef struct
{
DataType1 *data;
int max;
int top;
}Stack1;
void SetStack1(Stack1 *S,int n)
{
S->data=(DataType1*)malloc(n*sizeof(DataType1));
if(S->data==NULL)
{
printf("overflow");
exit(1);
}
S->max=n;
S->top=-1;
}
void FreeStack1(Stack1 *S)
{
free(S->data);
}
int StackEmpty1(Stack1 *S)
{
if(S->top==-1)
return(1);
return(0);
}
DataType1 Peek1(Stack1 *S)
{
if(S->top==S->max-1)
{
printf("Stack1 is empty!\n");
exit(1);
}
return(S->data[S->top]);
}
void Push1(Stack1 *S,DataType1 item)
{
if(S->top==S->max-1)
{
printf("Stack is full!\n");
exit(1);
}
S->top++;
S->data[S->top]=item;
}
DataType1 Pop1(Stack1 *S)
{
if(S->top==-1)
{
printf("Pop an empty stack!\n");
exit(1);
}
S->top--;
return(S->data[S->top+1]);
}
DataType1 MathOptr(char ch)
{
DataType1 optr;
optr.op=ch;
switch(optr.op)
{
case'+':
case'-':
optr.inputprecedence=1;
optr.stackprecedence=1;
break;
case'*':
case'/':
optr.inputprecedence=2;
optr.stackprecedence=2;
break;
case'(':
optr.inputprecedence=3;
optr.stackprecedence=-1;
break;
case')':
optr.inputprecedence=0;
optr.stackprecedence=0;
break;
}
return(optr);
}
void Evaluate(Stack *OpndStack,DataType1 optr)
{
DataType opnd1,opnd2;
opnd1=Pop(OpndStack);
opnd2=Pop(OpndStack);
switch(optr.op)
{
case'+':
Push(OpndStack,opnd2+opnd1);
break;
case'-':
Push(OpndStack,opnd2-opnd1);
break;
case'*':
Push(OpndStack,opnd2*opnd1);
break;
case'/':
Push(OpndStack,opnd2/opnd1);
break;
}
}
int isoptr(char ch)
{
if(ch=='+'||ch=='-'||ch=='*'||ch=='/'||ch=='(')
return(1);
return(0);
}
void Infix(char *str)
{
int i,k,n=strlen(str);
char ch,numstr[];
DataType opnd;
DataType1 optr;
Stack OpndStack;
Stack1 OptrStack;
SetStack(&OpndStack,n);
SetStack1(&OptrStack,n);
k=0;
ch=str[k];
while(ch!='=')
if(isdigit(ch)||ch=='.')
{
for(i=0;isdigit(ch)||ch=='.';i++)
{
numstr[i]=ch;
k++;
ch=str[k];
}
numstr[i]='\0';
opnd= atof(numstr);
Push(&OpndStack,opnd);
}
else
if(isoptr(ch))
{
optr=MathOptr(ch);
while(Peek1(&OptrStack).stackprecedence>=optr.inputprecedence)
Evaluate(&OpndStack,Pop1(&OptrStack));
Push1(&OptrStack,optr);
k++;
ch=str[k];
}
else if(ch==')')
{
optr=MathOptr(ch);
while(Peek1(&OptrStack).stackprecedence>=optr.inputprecedence)
Evaluate(&OpndStack,Pop1(&OptrStack));
Pop1(&OptrStack);
k++;
ch=str[k];
}
while(!StackEmpty1(&OptrStack))
Evaluate(&OpndStack,Pop1(&OptrStack));
opnd=Pop(&OpndStack);
cout<<"你输入表达式的计算结果为"<<endl;
printf("%-6.2f\n",opnd);
FreeStack(&OpndStack);
FreeStack1(&OptrStack);
}
void main()
{
cout<<"请输入你要计算的表达式,并以“=”号结束。"<<endl;
char str[];
gets(str);
Infix(str);
=================================================================
哈哈！源码给分吧！源码
请问哈，源码birt源码那能找到个简单的源码整站ASP源代码，有基本的源码功能就可以，后台好操作，源码完整
第一个：
<tr>
<td colspan="2" align="left" valign="top" class="c">留言内容:<p><%=rs("connet")%></td>
</tr>
<tr>
<td colspan="2" align="left" valign="top" class="c" height="">
..............<a href="del.asp?id=<%=rs("id")%>" style="text-decoration: none"><font color="#">删除</font></a>.................<a href="reg.asp" style="text-decoration: none"><font color="#">我要留言</font></a>.........</td>
</tr>
把上面的改成
<tr>
<td colspan="3" align="left" valign="top" class="c">留言内容:<p><%=rs("connet")%></td>
</tr>
<tr>
<td colspan="3" align="left" valign="top" class="c" height="">
..............<a href="del.asp?id=<%=rs("id")%>" style="text-decoration: none"><font color="#">删除</font></a>.................<a href="reg.asp" style="text-decoration: none"><font color="#">我要留言</font></a>.........</td>
</tr>
第二个：
<!--header begin-->
<%
response.write "<div id=mainbox>"&_
"<table border=0 width=% cellpadding=4 style=border-collapse: collapse class='top_table'>"&_
"<form name=form action=Product_ListSearch.asp method=get>"&_
" <tr><td colspan=2 height=5></td></tr>"&_
" <tr>"&_
" <td><a href=index.asp title=返回首页><img src=uploadpic/></a></td>"&_
" <td align=right>"&_
" <table><tr><td class=cartimg></td><td><a href=Cart_List.asp>查看我的购物车</a>(<font color=#FF>"
if session("y")="" then response.write "0" else response.write session("y")
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response.write "<td><a href=index.asp title=返回首页><object classid='clsid:DCDB6E-AE6D-cf-B8-' codebase='/pub/shockwave/cabs/flash/swflash.cab#version=6,0,,0' width='' height=''>"&_
"<param name='movie' value='logo.swf'>"&_
"<param name='quality' value='high'>"&_
"<embed src='logo.swf' width='' height='' quality='high' type='application/x-shockwave-flash' width='' height=''></embed></object></a></td>"
%>
希望我的回答对你有所帮助。
7 款可替代 top 命令的工具！
大家好，我是杰哥，本文将为您介绍7款可替代 top 命令的工具，旨在让您更全面地掌握Linux操作系统中的性能监控手段。
首先，atop是唧唧源码一款基于C语言编写的全屏性能监视器，适用于Linux系统。它不仅能够记录进程、系统活动的每日日志，还能通过颜色显示过载的系统资源使用情况，提供包括CPU、内存、交换、磁盘、网络层等的系统级活动监控，并详细列出每个进程和线程的性能指标，如CPU利用率、套现源码内存增长、磁盘利用率、优先级、用户名、状态和退出代码等。atop结合内核模块netatop后，可进一步显示进程和线程的网络活动。安装atop需下载源码包，然后以root身份加载内核模块并启动守护程序。
其次，ctop是aac源码一个基于Go语言编写的实时指标展示工具，专门用于查看容器的实时CPU、内存、网络、IO等指标。在遇到“dial unix /var/run/docker.sock”错误时，需要先通过官方安装脚本自动安装docker。安装完成后，执行ctop命令即可查看容器的实时指标。
iftop与top类似，专门用于监听命名接口上的网络流量，显示当前带宽使用情况。使用iftop时，只需提供接口名称即可。
iotop是一个用于识别消耗大量输入/输出请求的进程的工具，提供类似于top的性能监控，但关注的是进程的IO使用情况。iotop由Guillaume Chazarain的Python脚本启发，经过Vyacheslav Trushkin用C重写和Boian Bonev的改进后，无需Python即可运行。支持多种Linux发行版，包括Debian、Ubuntu、Fedora、CentOS、RHEL等。
nmon是一个用于AIX和Linux操作系统的性能监控工具，每两秒更新一次终端上的本地系统统计信息（CPU、内存、网络、磁盘、文件系统、NFS、进程、资源等），并以CSV格式保存统计数据，便于绘图和分析。若要处于记录模式，需在命令中添加参数选项。
slabtop用于实时显示内核“slab”缓冲区的详细信息。它提供选项进行排序，并显示内核缓存区的信息。
最后，virt-top是一个类似于top的实用程序，用于显示虚拟化域的统计信息，包括CPU、内存、虚拟磁盘、虚拟网络、虚拟机管理程序等。它需要使用libvirt才能显示不同虚拟化系统的统计信息，支持CentOS、RHEL、Debian、Ubuntu、Fedora、OpenSUSE等操作系统。安装virt-top的步骤在文中详细列出。
以上介绍的工具在Linux性能监控领域各有特色，根据具体需求选择合适的工具将能更深入地理解系统资源使用情况，优化系统性能。
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