zoukankan      html  css  js  c++  java
  • 一键检查机器性能测试网络

    #!/usr/bin/env bash
    #
    # Description: Auto test download & I/O speed script
    #
    # Copyright (C) 2015 - 2020 Teddysun <i@teddysun.com>
    # Thanks: LookBack <admin@dwhd.org>
    # URL: https://teddysun.com/444.html
    #
    trap _exit INT QUIT TERM
    
    _red() {
        printf '33[0;31;31m%b33[0m' "$1"
    }
    
    _green() {
        printf '33[0;31;32m%b33[0m' "$1"
    }
    
    _yellow() {
        printf '33[0;31;33m%b33[0m' "$1"
    }
    
    _blue() {
        printf '33[0;31;36m%b33[0m' "$1"
    }
    
    _exists() {
        local cmd="$1"
        if eval type type > /dev/null 2>&1; then
            eval type "$cmd" > /dev/null 2>&1
        elif command > /dev/null 2>&1; then
            command -v "$cmd" > /dev/null 2>&1
        else
            which "$cmd" > /dev/null 2>&1
        fi
        local rt=$?
        return ${rt}
    }
    
    _64bit(){
        if [ $(getconf WORD_BIT) = '32' ] && [ $(getconf LONG_BIT) = '64' ]; then
            return 0
        else
            return 1
        fi
    }
    
    _exit() {
        _red "
    The script has been terminated.
    "
        # clean up
        rm -fr speedtest-cli benchtest_*
        exit 1
    }
    
    get_opsy() {
        [ -f /etc/redhat-release ] && awk '{print ($1,$3~/^[0-9]/?$3:$4)}' /etc/redhat-release && return
        [ -f /etc/os-release ] && awk -F'[= "]' '/PRETTY_NAME/{print $3,$4,$5}' /etc/os-release && return
        [ -f /etc/lsb-release ] && awk -F'[="]+' '/DESCRIPTION/{print $2}' /etc/lsb-release && return
    }
    
    next() {
        printf "%-70s
    " "-" | sed 's/s/-/g'
    }
    
    speed_test() {
        local nodeName="$2"
        [ -z "$1" ] && ./speedtest-cli/speedtest --progress=no --accept-license --accept-gdpr > ./speedtest-cli/speedtest.log 2>&1 || 
        ./speedtest-cli/speedtest --progress=no --server-id=$1 --accept-license --accept-gdpr > ./speedtest-cli/speedtest.log 2>&1
        if [ $? -eq 0 ]; then
            local dl_speed=$(awk '/Download/{print $3" "$4}' ./speedtest-cli/speedtest.log)
            local up_speed=$(awk '/Upload/{print $3" "$4}' ./speedtest-cli/speedtest.log)
            local latency=$(awk '/Latency/{print $2" "$3}' ./speedtest-cli/speedtest.log)
            if [[ -n "${dl_speed}" && -n "${up_speed}" && -n "${latency}" ]]; then
                printf "33[0;33m%-18s33[0;32m%-18s33[0;31m%-20s33[0;36m%-12s33[0m
    " " ${nodeName}" "${up_speed}" "${dl_speed}" "${latency}"
            fi
        fi
    }
    
    speed() {
        speed_test '' 'Speedtest.net'
        speed_test '5145'  'Beijing    CU'
        speed_test '3633'  'Shanghai   CT'
        speed_test '24447' 'Shanghai   CU'
        speed_test '27594' 'Guangzhou  CT'
        speed_test '26678' 'Guangzhou  CU'
        speed_test '16192' 'Shenzhen   CU'
        speed_test '4515'  'Shenzhen   CM'
        speed_test '32155' 'Hongkong   CN'
    }
    
    io_test() {
        (LANG=C dd if=/dev/zero of=benchtest_$$ bs=64k count=16k conv=fdatasync && rm -f benchtest_$$ ) 2>&1 | awk -F, '{io=$NF} END { print io}' | sed 's/^[ 	]*//;s/[ 	]*$//'
    }
    
    calc_disk() {
        local total_size=0
        local array=$@
        for size in ${array[@]}
        do
            [ "${size}" == "0" ] && size_t=0 || size_t=`echo ${size:0:${#size}-1}`
            [ "`echo ${size:(-1)}`" == "K" ] && size=0
            [ "`echo ${size:(-1)}`" == "M" ] && size=$( awk 'BEGIN{printf "%.1f", '$size_t' / 1024}' )
            [ "`echo ${size:(-1)}`" == "T" ] && size=$( awk 'BEGIN{printf "%.1f", '$size_t' * 1024}' )
            [ "`echo ${size:(-1)}`" == "G" ] && size=${size_t}
            total_size=$( awk 'BEGIN{printf "%.1f", '$total_size' + '$size'}' )
        done
        echo ${total_size}
    }
    
    check_virt(){
        _exists "dmesg" && virtualx="$(dmesg 2>/dev/null)"
        if _exists "dmidecode"; then
            sys_manu="$(dmidecode -s system-manufacturer 2>/dev/null)"
            sys_product="$(dmidecode -s system-product-name 2>/dev/null)"
            sys_ver="$(dmidecode -s system-version 2>/dev/null)"
        else
            sys_manu=""
            sys_product=""
            sys_ver=""
        fi
        if   grep -qa docker /proc/1/cgroup; then
            virt="Docker"
        elif grep -qa lxc /proc/1/cgroup; then
            virt="LXC"
        elif grep -qa container=lxc /proc/1/environ; then
            virt="LXC"
        elif [[ -f /proc/user_beancounters ]]; then
            virt="OpenVZ"
        elif [[ "${virtualx}" == *kvm-clock* ]]; then
            virt="KVM"
        elif [[ "${cname}" == *KVM* ]]; then
            virt="KVM"
        elif [[ "${cname}" == *QEMU* ]]; then
            virt="KVM"
        elif [[ "${virtualx}" == *"VMware Virtual Platform"* ]]; then
            virt="VMware"
        elif [[ "${virtualx}" == *"Parallels Software International"* ]]; then
            virt="Parallels"
        elif [[ "${virtualx}" == *VirtualBox* ]]; then
            virt="VirtualBox"
        elif [[ -e /proc/xen ]]; then
            virt="Xen"
        elif [[ "${sys_manu}" == *"Microsoft Corporation"* ]]; then
            if [[ "${sys_product}" == *"Virtual Machine"* ]]; then
                if [[ "${sys_ver}" == *"7.0"* || "${sys_ver}" == *"Hyper-V" ]]; then
                    virt="Hyper-V"
                else
                    virt="Microsoft Virtual Machine"
                fi
            fi
        else
            virt="Physical machine"
        fi
    }
    
    ipv4_info() {
        local IP="$(curl -s cip.cc |sed -n '1p' |awk -F": " '{print $2}')"
    #    local org="$(wget -q -T10 -O- ipinfo.io/org)"
        local city="$(curl -s cip.cc |sed -n '2p' |awk '{print $NF}')"
        local country="$(curl -s cip.cc |sed -n '2p' |awk '{print $4}')"
        local region="$(curl -s cip.cc |sed -n '2p' |awk '{print $3}')"
        [[ -n "$IP" ]] && echo " IP                    : $(_blue "$IP")"
        [[ -n "$org" ]] && echo " Organization          : $(_blue "$org")"
        [[ -n "$city" && -n "country" ]] && echo " Location              : $(_blue "$country / $city")"
        [[ -n "$region" ]] && echo " Region                : $(_blue "$region")"
    }
    
    install_speedtest() {
        if  [ ! -e "./speedtest-cli/speedtest" ]; then
            _64bit && sys_bit=x86_64 || sys_bit=i386
            url1="https://dl.bintray.com/ookla/download/ookla-speedtest-1.0.0-${sys_bit}-linux.tgz"
            url2="https://dl.lamp.sh/files/ookla-speedtest-1.0.0-${sys_bit}-linux.tgz"
            wget --no-check-certificate -q -T10 -O speedtest.tgz ${url1}
            if [ $? -ne 0 ]; then
                wget --no-check-certificate -q -T10 -O speedtest.tgz ${url2}
                [ $? -ne 0 ] && _red "Error: Failed to download speedtest-cli.
    " && exit 1
            fi
            mkdir -p speedtest-cli && tar zxf speedtest.tgz -C ./speedtest-cli && chmod +x ./speedtest-cli/speedtest
            rm -f speedtest.tgz
        fi
    }
    
    ! _exists "wget" && _red "Error: wget command not found. You must be install wget command at first.
    " && exit 1
    # Get System information
    cname=$( awk -F: '/model name/ {name=$2} END {print name}' /proc/cpuinfo | sed 's/^[ 	]*//;s/[ 	]*$//' )
    cores=$( awk -F: '/model name/ {core++} END {print core}' /proc/cpuinfo )
    freq=$( awk -F'[ :]' '/cpu MHz/ {print $4;exit}' /proc/cpuinfo )
    ccache=$( awk -F: '/cache size/ {cache=$2} END {print cache}' /proc/cpuinfo | sed 's/^[ 	]*//;s/[ 	]*$//' )
    tram=$( LANG=C; free -m | awk '/Mem/ {print $2}' )
    uram=$( LANG=C; free -m | awk '/Mem/ {print $3}' )
    swap=$( LANG=C; free -m | awk '/Swap/ {print $2}' )
    uswap=$( LANG=C; free -m | awk '/Swap/ {print $3}' )
    up=$( awk '{a=$1/86400;b=($1%86400)/3600;c=($1%3600)/60} {printf("%d days, %d hour %d min
    ",a,b,c)}' /proc/uptime )
    if _exists "w"; then
        load=$( LANG=C; w | head -1 | awk -F'load average:' '{print $2}' | sed 's/^[ 	]*//;s/[ 	]*$//' )
    elif _exists "uptime"; then
        load=$( LANG=C; uptime | head -1 | awk -F'load average:' '{print $2}' | sed 's/^[ 	]*//;s/[ 	]*$//' )
    fi
    opsy=$( get_opsy )
    arch=$( uname -m )
    if _exists "getconf"; then
        lbit=$( getconf LONG_BIT )
    else
        echo ${arch} | grep -q "64" && lbit="64" || lbit="32"
    fi
    kern=$( uname -r )
    disk_size1=($( LANG=C df -hPl | grep -wvE '-|none|tmpfs|devtmpfs|by-uuid|chroot|Filesystem|udev|docker' | awk '{print $2}' ))
    disk_size2=($( LANG=C df -hPl | grep -wvE '-|none|tmpfs|devtmpfs|by-uuid|chroot|Filesystem|udev|docker' | awk '{print $3}' ))
    disk_total_size=$( calc_disk "${disk_size1[@]}" )
    disk_used_size=$( calc_disk "${disk_size2[@]}" )
    tcpctrl=$( sysctl net.ipv4.tcp_congestion_control | awk -F ' ' '{print $3}' )
    check_virt
    clear
    next
    echo " CPU Model             : $(_blue "$cname")"
    echo " CPU Cores             : $(_blue "$cores")"
    echo " CPU Frequency         : $(_blue "$freq MHz")"
    echo " CPU Cache             : $(_blue "$ccache")"
    echo " Total Disk            : $(_blue "$disk_total_size GB ($disk_used_size GB Used)")"
    echo " Total Mem             : $(_blue "$tram MB ($uram MB Used)")"
    echo " Total Swap            : $(_blue "$swap MB ($uswap MB Used)")"
    echo " System uptime         : $(_blue "$up")"
    echo " Load average          : $(_blue "$load")"
    echo " OS                    : $(_blue "$opsy")"
    echo " Arch                  : $(_blue "$arch ($lbit Bit)")"
    echo " Kernel                : $(_blue "$kern")"
    echo " TCP CC                : $(_blue "$tcpctrl")"
    echo " Virtualization        : $(_blue "$virt")"
    ipv4_info
    next
    io1=$( io_test )
    echo " I/O Speed(1st run)    : $(_yellow "$io1")"
    echo " Hard Disk Type        : $(_yellow $(lsscsi |sed -n '1p' |awk '{print $5}'))"
    ioraw1=$( echo $io1 | awk 'NR==1 {print $1}' )
    [ "`echo $io1 | awk 'NR==1 {print $2}'`" == "GB/s" ] && ioraw1=$( awk 'BEGIN{print '$ioraw1' * 1024}' )
    #next
    #install_speedtest && printf "%-18s%-18s%-20s%-12s
    " " Node Name" "Upload Speed" "Download Speed" "Latency"
    #speed && rm -fr speedtest-cli
    next

    #!/usr/bin/env bash## Description: Auto test download & I/O speed script## Copyright (C) 2015 - 2020 Teddysun <i@teddysun.com># Thanks: LookBack <admin@dwhd.org># URL: https://teddysun.com/444.html#trap _exit INT QUIT TERM
    _red() {    printf '33[0;31;31m%b33[0m' "$1"}
    _green() {    printf '33[0;31;32m%b33[0m' "$1"}
    _yellow() {    printf '33[0;31;33m%b33[0m' "$1"}
    _blue() {    printf '33[0;31;36m%b33[0m' "$1"}
    _exists() {    local cmd="$1"    if eval type type > /dev/null 2>&1; then        eval type "$cmd" > /dev/null 2>&1    elif command > /dev/null 2>&1; then        command -v "$cmd" > /dev/null 2>&1    else        which "$cmd" > /dev/null 2>&1    fi    local rt=$?    return ${rt}}
    _64bit(){    if [ $(getconf WORD_BIT) = '32' ] && [ $(getconf LONG_BIT) = '64' ]; then        return 0    else        return 1    fi}
    _exit() {    _red " The script has been terminated. "    # clean up    rm -fr speedtest-cli benchtest_*    exit 1}
    get_opsy() {    [ -f /etc/redhat-release ] && awk '{print ($1,$3~/^[0-9]/?$3:$4)}' /etc/redhat-release && return    [ -f /etc/os-release ] && awk -F'[= "]' '/PRETTY_NAME/{print $3,$4,$5}' /etc/os-release && return    [ -f /etc/lsb-release ] && awk -F'[="]+' '/DESCRIPTION/{print $2}' /etc/lsb-release && return}
    next() {    printf "%-70s " "-" | sed 's/s/-/g'}
    speed_test() {    local nodeName="$2"    [ -z "$1" ] && ./speedtest-cli/speedtest --progress=no --accept-license --accept-gdpr > ./speedtest-cli/speedtest.log 2>&1 ||     ./speedtest-cli/speedtest --progress=no --server-id=$1 --accept-license --accept-gdpr > ./speedtest-cli/speedtest.log 2>&1    if [ $? -eq 0 ]; then        local dl_speed=$(awk '/Download/{print $3" "$4}' ./speedtest-cli/speedtest.log)        local up_speed=$(awk '/Upload/{print $3" "$4}' ./speedtest-cli/speedtest.log)        local latency=$(awk '/Latency/{print $2" "$3}' ./speedtest-cli/speedtest.log)        if [[ -n "${dl_speed}" && -n "${up_speed}" && -n "${latency}" ]]; then            printf "33[0;33m%-18s33[0;32m%-18s33[0;31m%-20s33[0;36m%-12s33[0m " " ${nodeName}" "${up_speed}" "${dl_speed}" "${latency}"        fi    fi}
    speed() {    speed_test '' 'Speedtest.net'    speed_test '5145'  'Beijing    CU'    speed_test '3633'  'Shanghai   CT'    speed_test '24447' 'Shanghai   CU'    speed_test '27594' 'Guangzhou  CT'    speed_test '26678' 'Guangzhou  CU'    speed_test '16192' 'Shenzhen   CU'    speed_test '4515'  'Shenzhen   CM'    speed_test '32155' 'Hongkong   CN'}
    io_test() {    (LANG=C dd if=/dev/zero of=benchtest_$$ bs=64k count=16k conv=fdatasync && rm -f benchtest_$$ ) 2>&1 | awk -F, '{io=$NF} END { print io}' | sed 's/^[ ]*//;s/[ ]*$//'}
    calc_disk() {    local total_size=0    local array=$@    for size in ${array[@]}    do        [ "${size}" == "0" ] && size_t=0 || size_t=`echo ${size:0:${#size}-1}`        [ "`echo ${size:(-1)}`" == "K" ] && size=0        [ "`echo ${size:(-1)}`" == "M" ] && size=$( awk 'BEGIN{printf "%.1f", '$size_t' / 1024}' )        [ "`echo ${size:(-1)}`" == "T" ] && size=$( awk 'BEGIN{printf "%.1f", '$size_t' * 1024}' )        [ "`echo ${size:(-1)}`" == "G" ] && size=${size_t}        total_size=$( awk 'BEGIN{printf "%.1f", '$total_size' + '$size'}' )    done    echo ${total_size}}
    check_virt(){    _exists "dmesg" && virtualx="$(dmesg 2>/dev/null)"    if _exists "dmidecode"; then        sys_manu="$(dmidecode -s system-manufacturer 2>/dev/null)"        sys_product="$(dmidecode -s system-product-name 2>/dev/null)"        sys_ver="$(dmidecode -s system-version 2>/dev/null)"    else        sys_manu=""        sys_product=""        sys_ver=""    fi    if   grep -qa docker /proc/1/cgroup; then        virt="Docker"    elif grep -qa lxc /proc/1/cgroup; then        virt="LXC"    elif grep -qa container=lxc /proc/1/environ; then        virt="LXC"    elif [[ -f /proc/user_beancounters ]]; then        virt="OpenVZ"    elif [[ "${virtualx}" == *kvm-clock* ]]; then        virt="KVM"    elif [[ "${cname}" == *KVM* ]]; then        virt="KVM"    elif [[ "${cname}" == *QEMU* ]]; then        virt="KVM"    elif [[ "${virtualx}" == *"VMware Virtual Platform"* ]]; then        virt="VMware"    elif [[ "${virtualx}" == *"Parallels Software International"* ]]; then        virt="Parallels"    elif [[ "${virtualx}" == *VirtualBox* ]]; then        virt="VirtualBox"    elif [[ -e /proc/xen ]]; then        virt="Xen"    elif [[ "${sys_manu}" == *"Microsoft Corporation"* ]]; then        if [[ "${sys_product}" == *"Virtual Machine"* ]]; then            if [[ "${sys_ver}" == *"7.0"* || "${sys_ver}" == *"Hyper-V" ]]; then                virt="Hyper-V"            else                virt="Microsoft Virtual Machine"            fi        fi    else        virt="Physical machine"    fi}
    ipv4_info() {    local IP="$(curl -s cip.cc |sed -n '1p' |awk -F": " '{print $2}')"#    local org="$(wget -q -T10 -O- ipinfo.io/org)"    local city="$(curl -s cip.cc |sed -n '2p' |awk '{print $NF}')"    local country="$(curl -s cip.cc |sed -n '2p' |awk '{print $4}')"    local region="$(curl -s cip.cc |sed -n '2p' |awk '{print $3}')"    [[ -n "$IP" ]] && echo " IP                    : $(_blue "$IP")"    [[ -n "$org" ]] && echo " Organization          : $(_blue "$org")"    [[ -n "$city" && -n "country" ]] && echo " Location              : $(_blue "$country / $city")"    [[ -n "$region" ]] && echo " Region                : $(_blue "$region")"}
    install_speedtest() {    if  [ ! -e "./speedtest-cli/speedtest" ]; then        _64bit && sys_bit=x86_64 || sys_bit=i386        url1="https://dl.bintray.com/ookla/download/ookla-speedtest-1.0.0-${sys_bit}-linux.tgz"        url2="https://dl.lamp.sh/files/ookla-speedtest-1.0.0-${sys_bit}-linux.tgz"        wget --no-check-certificate -q -T10 -O speedtest.tgz ${url1}        if [ $? -ne 0 ]; then            wget --no-check-certificate -q -T10 -O speedtest.tgz ${url2}            [ $? -ne 0 ] && _red "Error: Failed to download speedtest-cli. " && exit 1        fi        mkdir -p speedtest-cli && tar zxf speedtest.tgz -C ./speedtest-cli && chmod +x ./speedtest-cli/speedtest        rm -f speedtest.tgz    fi}
    ! _exists "wget" && _red "Error: wget command not found. You must be install wget command at first. " && exit 1# Get System informationcname=$( awk -F: '/model name/ {name=$2} END {print name}' /proc/cpuinfo | sed 's/^[ ]*//;s/[ ]*$//' )cores=$( awk -F: '/model name/ {core++} END {print core}' /proc/cpuinfo )freq=$( awk -F'[ :]' '/cpu MHz/ {print $4;exit}' /proc/cpuinfo )ccache=$( awk -F: '/cache size/ {cache=$2} END {print cache}' /proc/cpuinfo | sed 's/^[ ]*//;s/[ ]*$//' )tram=$( LANG=C; free -m | awk '/Mem/ {print $2}' )uram=$( LANG=C; free -m | awk '/Mem/ {print $3}' )swap=$( LANG=C; free -m | awk '/Swap/ {print $2}' )uswap=$( LANG=C; free -m | awk '/Swap/ {print $3}' )up=$( awk '{a=$1/86400;b=($1%86400)/3600;c=($1%3600)/60} {printf("%d days, %d hour %d min ",a,b,c)}' /proc/uptime )if _exists "w"; then    load=$( LANG=C; w | head -1 | awk -F'load average:' '{print $2}' | sed 's/^[ ]*//;s/[ ]*$//' )elif _exists "uptime"; then    load=$( LANG=C; uptime | head -1 | awk -F'load average:' '{print $2}' | sed 's/^[ ]*//;s/[ ]*$//' )fiopsy=$( get_opsy )arch=$( uname -m )if _exists "getconf"; then    lbit=$( getconf LONG_BIT )else    echo ${arch} | grep -q "64" && lbit="64" || lbit="32"fikern=$( uname -r )disk_size1=($( LANG=C df -hPl | grep -wvE '-|none|tmpfs|devtmpfs|by-uuid|chroot|Filesystem|udev|docker' | awk '{print $2}' ))disk_size2=($( LANG=C df -hPl | grep -wvE '-|none|tmpfs|devtmpfs|by-uuid|chroot|Filesystem|udev|docker' | awk '{print $3}' ))disk_total_size=$( calc_disk "${disk_size1[@]}" )disk_used_size=$( calc_disk "${disk_size2[@]}" )tcpctrl=$( sysctl net.ipv4.tcp_congestion_control | awk -F ' ' '{print $3}' )check_virtclearnextecho " CPU Model             : $(_blue "$cname")"echo " CPU Cores             : $(_blue "$cores")"echo " CPU Frequency         : $(_blue "$freq MHz")"echo " CPU Cache             : $(_blue "$ccache")"echo " Total Disk            : $(_blue "$disk_total_size GB ($disk_used_size GB Used)")"echo " Total Mem             : $(_blue "$tram MB ($uram MB Used)")"echo " Total Swap            : $(_blue "$swap MB ($uswap MB Used)")"echo " System uptime         : $(_blue "$up")"echo " Load average          : $(_blue "$load")"echo " OS                    : $(_blue "$opsy")"echo " Arch                  : $(_blue "$arch ($lbit Bit)")"echo " Kernel                : $(_blue "$kern")"echo " TCP CC                : $(_blue "$tcpctrl")"echo " Virtualization        : $(_blue "$virt")"ipv4_infonextio1=$( io_test )echo " I/O Speed(1st run)    : $(_yellow "$io1")"echo " Hard Disk Type        : $(_yellow $(lsscsi |sed -n '1p' |awk '{print $5}'))"#io2=$( io_test )#echo " I/O Speed(2nd run)    : $(_yellow "$io2")"#io3=$( io_test )#echo " I/O Speed(3rd run)    : $(_yellow "$io3")"ioraw1=$( echo $io1 | awk 'NR==1 {print $1}' )[ "`echo $io1 | awk 'NR==1 {print $2}'`" == "GB/s" ] && ioraw1=$( awk 'BEGIN{print '$ioraw1' * 1024}' )#ioraw2=$( echo $io2 | awk 'NR==1 {print $1}' )#[ "`echo $io2 | awk 'NR==1 {print $2}'`" == "GB/s" ] && ioraw2=$( awk 'BEGIN{print '$ioraw2' * 1024}' )#ioraw3=$( echo $io3 | awk 'NR==1 {print $1}' )#[ "`echo $io3 | awk 'NR==1 {print $2}'`" == "GB/s" ] && ioraw3=$( awk 'BEGIN{print '$ioraw3' * 1024}' )#ioall=$( awk 'BEGIN{print '$ioraw1' + '$ioraw2' + '$ioraw3'}' )#ioavg=$( awk 'BEGIN{printf "%.1f", '$ioall' / 3}' )#echo -e " Average I/O speed     : $(_yellow "$ioavg MB/s")"#next#install_speedtest && printf "%-18s%-18s%-20s%-12s " " Node Name" "Upload Speed" "Download Speed" "Latency"#speed && rm -fr speedtest-clinext

  • 相关阅读:
    ehcache memcache redis 三大缓存男高音
    tomcat启用压缩的方式
    Linux rpm 命令参数使用详解[介绍和应用]
    rpm常用命令及rpm参数介绍
    RPM 命令大全
    BZOJ2298: [HAOI2011]problem a(带权区间覆盖DP)
    BZOJ2037: [Sdoi2008]Sue的小球(区间DP)
    HDU3507 Print Article(斜率优化DP)
    线性代数学习笔记(几何版)
    HDU 2065 "红色病毒"问题(生成函数)
  • 原文地址:https://www.cnblogs.com/dengcongcong/p/14273580.html
Copyright © 2011-2022 走看看