目录
1）如果提示wget命令为找到，用yum -y install? wget安装wget
2）可能提示wget: 无法解析主机地址 “tengine.taobao.org”可能是网络没有连接
前言
??????? 今天学习Linux源码包管理，首先会介绍什么是源码包，认识源码包，学习怎么获取源码包，并且部署源码包安装的程序。
什么是源码包？
????????source?? code需要经过GCC，C++编译环境编译才能运行；可以设定个人设置，开关功能；但是配置复杂。
软件包示例：nginx-1.8.1.tar.gz
- nginx：包名。
- -1.8.1：版本号。
- .tar.gz：压缩格式。
获得源码包
??????? 从官方网站，可以获得最新的软件包：
- Apache：www.apache.org
- Nginx：www.nginx.org
- Tengine：tengine.taobao.org
今天以Tengine为例展示获得源码包。
1.下载tengine
使用wget命令下载源码包
命令：wget http://tengine.taobao.org/download/tengine-2.3.2.tar.gz
[root@localhost tengine]# wget http://tengine.taobao.org/download/tengine-2.3.2.tar.gz
--2022-11-03 13:47:54-- http://tengine.taobao.org/download/tengine-2.3.2.tar.gz
正在解析主机 tengine.taobao.org (tengine.taobao.org)... 106.11.186.45, 203.119.245.120, 203.119.245.121, ...
正在连接 tengine.taobao.org (tengine.taobao.org)|106.11.186.45|:80... 已连接。
已发出 HTTP 请求，正在等待回应... 200 OK
长度：2835884 (2.7M) [application/octet-stream]
正在保存至: “tengine-2.3.2.tar.gz”
100%[=============================================>] 2,835,884 230KB/s 用时 10s
2022-11-03 13:48:04 (266 KB/s) - 已保存 “tengine-2.3.2.tar.gz” [2835884/2835884])
?下载可能遇到的问题：
1）如果提示wget命令为找到，用yum -y install? wget安装wget
2）可能提示wget: 无法解析主机地址 “tengine.taobao.org”可能是网络没有连接
1）如果提示wget命令为找到，用yum -y install? wget安装wget
[root@localhost tengine]# yum -y install wget
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
dvd | 3.6 kB 00:00:00
正在解决依赖关系
--> 正在检查事务
---> 软件包 wget.x86_64.0.1.14-18.el7_6.1 将被 安装
--> 解决依赖关系完成
依赖关系解决
=======================================================================================
Package 架构 版本 源 大小
=======================================================================================
正在安装:
wget x86_64 1.14-18.el7_6.1 dvd 547 k
事务概要
=======================================================================================
安装 1 软件包
总下载量：547 k
安装大小：2.0 M
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安装 : wget-1.14-18.el7_6.1.x86_64 1/1
验证中 : wget-1.14-18.el7_6.1.x86_64 1/1
已安装:
wget.x86_64 0:1.14-18.el7_6.1
完毕！
2）可能提示wget: 无法解析主机地址 “tengine.taobao.org”可能是网络没有连接
2.准备编译环境如编译器
命令：yum? -y?? install? gcc?? make? zlib-devel? pcre-devel??? openssl-devl
gcc 、make、zlib-devel 、 pcre-devel 、 ? openssl-devl这些都是常见的编译工具。
[root@localhost tengine-2.3.2]# yum -y install gcc make zlib-devel pcre-devel openssl-devl
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
软件包 gcc-4.8.5-44.el7.x86_64 已安装并且是最新版本
软件包 1:make-3.82-24.el7.x86_64 已安装并且是最新版本
没有可用软件包 openssl-devl。
正在解决依赖关系
--> 正在检查事务
---> 软件包 pcre-devel.x86_64.0.8.32-17.el7 将被 安装
---> 软件包 zlib-devel.x86_64.0.1.2.7-18.el7 将被 安装
--> 解决依赖关系完成
依赖关系解决
=======================================================================================
Package 架构 版本 源 大小
=======================================================================================
正在安装:
pcre-devel x86_64 8.32-17.el7 dvd 480 k
zlib-devel x86_64 1.2.7-18.el7 dvd 50 k
事务概要
=======================================================================================
安装 2 软件包
总下载量：530 k
安装大小：1.6 M
Downloading packages:
---------------------------------------------------------------------------------------
总计 1.5 MB/s | 530 kB 00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安装 : pcre-devel-8.32-17.el7.x86_64 1/2
正在安装 : zlib-devel-1.2.7-18.el7.x86_64 2/2
验证中 : zlib-devel-1.2.7-18.el7.x86_64 1/2
验证中 : pcre-devel-8.32-17.el7.x86_64 2/2
已安装:
pcre-devel.x86_64 0:8.32-17.el7 zlib-devel.x86_64 0:1.2.7-18.el7
完毕！
[root@localhost tengine-2.3.2]# make
make: *** 没有规则可以创建“default”需要的目标“build”。 停止。
[root@localhost tengine-2.3.2]# make
make: *** 没有规则可以创建“default”需要的目标“build”。 停止。
[root@localhost tengine-2.3.2]# ^C
[root@localhost tengine-2.3.2]# <pre>yum -y install gcc make zlib-devel pcre-devel openssl-devl
bash: pre: 没有那个文件或目录
[root@localhost tengine-2.3.2]# yum -y install gcc make zlib-devel pcre-devel openssl-devl
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
软件包 gcc-4.8.5-44.el7.x86_64 已安装并且是最新版本
软件包 1:make-3.82-24.el7.x86_64 已安装并且是最新版本
软件包 zlib-devel-1.2.7-18.el7.x86_64 已安装并且是最新版本
软件包 pcre-devel-8.32-17.el7.x86_64 已安装并且是最新版本
没有可用软件包 openssl-devl。
无须任何处理
[root@localhost tengine-2.3.2]# yum -y install gcc make zlib-devel pcre-devel openssl-devel
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
软件包 gcc-4.8.5-44.el7.x86_64 已安装并且是最新版本
软件包 1:make-3.82-24.el7.x86_64 已安装并且是最新版本
软件包 zlib-devel-1.2.7-18.el7.x86_64 已安装并且是最新版本
软件包 pcre-devel-8.32-17.el7.x86_64 已安装并且是最新版本
正在解决依赖关系
--> 正在检查事务
---> 软件包 openssl-devel.x86_64.1.1.0.2k-19.el7 将被 安装
--> 正在处理依赖关系 krb5-devel(x86-64)，它被软件包 1:openssl-devel-1.0.2k-19.el7.x86_64 需要
--> 正在检查事务
---> 软件包 krb5-devel.x86_64.0.1.15.1-50.el7 将被 安装
--> 正在处理依赖关系 libkadm5(x86-64) = 1.15.1-50.el7，它被软件包 krb5-devel-1.15.1-50.el7.x86_64 需要
--> 正在处理依赖关系 libverto-devel，它被软件包 krb5-devel-1.15.1-50.el7.x86_64 需要
--> 正在处理依赖关系 libselinux-devel，它被软件包 krb5-devel-1.15.1-50.el7.x86_64 需要
--> 正在处理依赖关系 libcom_err-devel，它被软件包 krb5-devel-1.15.1-50.el7.x86_64 需要
--> 正在处理依赖关系 keyutils-libs-devel，它被软件包 krb5-devel-1.15.1-50.el7.x86_64 需要
--> 正在检查事务
---> 软件包 keyutils-libs-devel.x86_64.0.1.5.8-3.el7 将被 安装
---> 软件包 libcom_err-devel.x86_64.0.1.42.9-19.el7 将被 安装
---> 软件包 libkadm5.x86_64.0.1.15.1-50.el7 将被 安装
---> 软件包 libselinux-devel.x86_64.0.2.5-15.el7 将被 安装
--> 正在处理依赖关系 libsepol-devel(x86-64) >= 2.5-10，它被软件包 libselinux-devel-2.5-15.el7.x86_64 需要
--> 正在处理依赖关系 pkgconfig(libsepol)，它被软件包 libselinux-devel-2.5-15.el7.x86_64 需要
---> 软件包 libverto-devel.x86_64.0.0.2.5-4.el7 将被 安装
--> 正在检查事务
---> 软件包 libsepol-devel.x86_64.0.2.5-10.el7 将被 安装
--> 解决依赖关系完成
依赖关系解决
=======================================================================================
Package 架构 版本 源 大小
=======================================================================================
正在安装:
openssl-devel x86_64 1:1.0.2k-19.el7 dvd 1.5 M
为依赖而安装:
keyutils-libs-devel x86_64 1.5.8-3.el7 dvd 37 k
krb5-devel x86_64 1.15.1-50.el7 dvd 273 k
libcom_err-devel x86_64 1.42.9-19.el7 dvd 32 k
libkadm5 x86_64 1.15.1-50.el7 dvd 179 k
libselinux-devel x86_64 2.5-15.el7 dvd 187 k
libsepol-devel x86_64 2.5-10.el7 dvd 77 k
libverto-devel x86_64 0.2.5-4.el7 dvd 12 k
事务概要
=======================================================================================
安装 1 软件包 (+7 依赖软件包)
总下载量：2.3 M
安装大小：4.5 M
Downloading packages:
---------------------------------------------------------------------------------------
总计 39 MB/s | 2.3 MB 00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安装 : libkadm5-1.15.1-50.el7.x86_64 1/8
正在安装 : libsepol-devel-2.5-10.el7.x86_64 2/8
正在安装 : libselinux-devel-2.5-15.el7.x86_64 3/8
正在安装 : libcom_err-devel-1.42.9-19.el7.x86_64 4/8
正在安装 : libverto-devel-0.2.5-4.el7.x86_64 5/8
正在安装 : keyutils-libs-devel-1.5.8-3.el7.x86_64 6/8
正在安装 : krb5-devel-1.15.1-50.el7.x86_64 7/8
正在安装 : 1:openssl-devel-1.0.2k-19.el7.x86_64 8/8
验证中 : libselinux-devel-2.5-15.el7.x86_64 1/8
验证中 : keyutils-libs-devel-1.5.8-3.el7.x86_64 2/8
验证中 : libverto-devel-0.2.5-4.el7.x86_64 3/8
验证中 : krb5-devel-1.15.1-50.el7.x86_64 4/8
验证中 : 1:openssl-devel-1.0.2k-19.el7.x86_64 5/8
验证中 : libcom_err-devel-1.42.9-19.el7.x86_64 6/8
验证中 : libsepol-devel-2.5-10.el7.x86_64 7/8
验证中 : libkadm5-1.15.1-50.el7.x86_64 8/8
已安装:
openssl-devel.x86_64 1:1.0.2k-19.el7
作为依赖被安装:
keyutils-libs-devel.x86_64 0:1.5.8-3.el7 krb5-devel.x86_64 0:1.15.1-50.el7
libcom_err-devel.x86_64 0:1.42.9-19.el7 libkadm5.x86_64 0:1.15.1-50.el7
libselinux-devel.x86_64 0:2.5-15.el7 libsepol-devel.x86_64 0:2.5-10.el7
libverto-devel.x86_64 0:0.2.5-4.el7
完毕！
?3.解压
??????? 下载的是个源码包是个压缩包，需要解压才能使用
命令：tar? xvf?? tengine-2.2.0.tar.gz
//创建一个用户等会需要用
[root@localhost tengine]# useradd sure1
//解压tengine-2.3.2.tar.gz到当前目录（tengine）
[root@localhost tengine]# tar xvf tengine-2.3.2.tar.gz
[root@localhost tengine]# cd tengine-2.3.2/
不是安装每个程序都需要用户的，这里设置的时候需要，也可以不要。
4.配置
./configure?? --user=sure1? --group=sure1 ? --prefix=/usr/local/nginx
./configure是必要的后面配置可以选择
user：用户。
group：用户组。
prefix：安装路径。
如果这里配置的时候配置错了，就把解压的文件上删除，重新解压压缩包，注意是删除解压后的文件不是压缩包。
[root@localhost tengine-2.3.2]# ./configure --user=sure1 --group=sure1 --prefix=/usr/local/nginx
checking for OS
+ Linux 3.10.0-1160.el7.x86_64 x86_64
checking for C compiler ... found
+ using GNU C compiler
+ gcc version: 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC)
checking for gcc -pipe switch ... found
checking for -Wl,-E switch ... found
checking for gcc builtin atomic operations ... found
checking for C99 variadic macros ... found
checking for gcc variadic macros ... found
checking for gcc builtin 64 bit byteswap ... found
checking for unistd.h ... found
checking for inttypes.h ... found
checking for limits.h ... found
checking for sys/filio.h ... not found
checking for sys/param.h ... found
checking for sys/mount.h ... found
checking for sys/statvfs.h ... found
checking for crypt.h ... found
checking for Linux specific features
checking for epoll ... found
checking for EPOLLRDHUP ... found
checking for EPOLLEXCLUSIVE ... not found
checking for O_PATH ... found
checking for sendfile() ... found
checking for sendfile64() ... found
checking for sys/prctl.h ... found
checking for prctl(PR_SET_DUMPABLE) ... found
checking for prctl(PR_SET_KEEPCAPS) ... found
checking for capabilities ... found
checking for crypt_r() ... found
checking for sys/vfs.h ... found
checking for poll() ... found
checking for /dev/poll ... not found
checking for kqueue ... not found
checking for crypt() ... not found
checking for crypt() in libcrypt ... found
checking for F_READAHEAD ... not found
checking for posix_fadvise() ... found
checking for O_DIRECT ... found
checking for F_NOCACHE ... not found
checking for directio() ... not found
checking for statfs() ... found
checking for statvfs() ... found
checking for dlopen() ... not found
checking for dlopen() in libdl ... found
checking for sched_yield() ... found
checking for sched_setaffinity() ... found
checking for SO_SETFIB ... not found
checking for SO_REUSEPORT ... found
checking for SO_ACCEPTFILTER ... not found
checking for SO_BINDANY ... not found
checking for IP_TRANSPARENT ... found
checking for IP_BINDANY ... not found
checking for IP_BIND_ADDRESS_NO_PORT ... found
checking for IP_RECVDSTADDR ... not found
checking for IP_SENDSRCADDR ... not found
checking for IP_PKTINFO ... found
checking for IPV6_RECVPKTINFO ... found
checking for TCP_DEFER_ACCEPT ... found
checking for TCP_KEEPIDLE ... found
checking for TCP_FASTOPEN ... found
checking for TCP_INFO ... found
checking for accept4() ... found
checking for eventfd() ... found
checking for int size ... 4 bytes
checking for long size ... 8 bytes
checking for long long size ... 8 bytes
checking for void * size ... 8 bytes
checking for uint32_t ... found
checking for uint64_t ... found
checking for sig_atomic_t ... found
checking for sig_atomic_t size ... 4 bytes
checking for socklen_t ... found
checking for in_addr_t ... found
checking for in_port_t ... found
checking for rlim_t ... found
checking for uintptr_t ... uintptr_t found
checking for system byte ordering ... little endian
checking for size_t size ... 8 bytes
checking for off_t size ... 8 bytes
checking for time_t size ... 8 bytes
checking for AF_INET6 ... found
checking for setproctitle() ... not found
checking for pread() ... found
checking for pwrite() ... found
checking for pwritev() ... found
checking for sys_nerr ... found
checking for localtime_r() ... found
checking for clock_gettime(CLOCK_MONOTONIC) ... found
checking for posix_memalign() ... found
checking for memalign() ... found
checking for mmap(MAP_ANON|MAP_SHARED) ... found
checking for mmap("/dev/zero", MAP_SHARED) ... found
checking for System V shared memory ... found
checking for POSIX semaphores ... not found
checking for POSIX semaphores in libpthread ... found
checking for struct msghdr.msg_control ... found
checking for ioctl(FIONBIO) ... found
checking for struct tm.tm_gmtoff ... found
checking for struct dirent.d_namlen ... not found
checking for struct dirent.d_type ... found
checking for sysconf(_SC_NPROCESSORS_ONLN) ... found
checking for sysconf(_SC_LEVEL1_DCACHE_LINESIZE) ... found
checking for openat(), fstatat() ... found
checking for getaddrinfo() ... found
checking for sysinfo() ... found
checking for getloadavg() ... found
checking for /proc/meminfo ... found
checking for /proc/stat ... found
checking for PCRE library ... found
checking for PCRE JIT support ... found
checking for OpenSSL library ... found
checking for zlib library ... found
creating objs/Makefile
Configuration summary
+ using system PCRE library
+ using system OpenSSL library
+ using system zlib library
+ jemalloc library is disabled
nginx path prefix: "/usr/local/nginx"
nginx binary file: "/usr/local/nginx/sbin/nginx"
nginx modules path: "/usr/local/nginx/modules"
nginx configuration prefix: "/usr/local/nginx/conf"
nginx configuration file: "/usr/local/nginx/conf/nginx.conf"
nginx pid file: "/usr/local/nginx/logs/nginx.pid"
nginx error log file: "/usr/local/nginx/logs/error.log"
nginx http access log file: "/usr/local/nginx/logs/access.log"
nginx http client request body temporary files: "client_body_temp"
nginx http proxy temporary files: "proxy_temp"
nginx http fastcgi temporary files: "fastcgi_temp"
nginx http uwsgi temporary files: "uwsgi_temp"
nginx http scgi temporary files: "scgi_temp"
5.编译
命令：make??????? //这就是刚刚安装的编译器
[root@localhost tengine-2.3.2]# make
make -f objs/Makefile
make[1]: 进入目录“/test/tengine/tengine-2.3.2”
src/core/ngx_syslog.c
cc -c -pipe -O -W -Wall -Wpointer-arith -Wno-unused-parameter -Werror -g -I src/core -I src/event -I src/event/modules -I src/os/unix -I src/proc -I objs \
-o objs/src/event/ngx_event.o \
src/event/ngx_event.c
cc -c -pipe -O -W -Wall -Wpointer-arith -Wno-unused-parameter -Werror -g -I src/core -I src/event -I src/event/modules -I src/os/unix -I src/proc -I objs \
-o objs/src/event/ngx_event_timer.o \
src/event/ngx_event_timer.c
cc -c -pipe -O -W -Wall -Wpointer-arith -Wno-unused-parameter -Werror -g -I src/core -I src/event -I src/event/modules -I src/os/unix -I src/proc -I objs \
-o objs/src/event/ngx_event_posted.o \
objs/src/http/ngx_http_file_cache.o \
objs/src/http/ngx_http_write_filter_module.o \
objs/src/http/ngx_http_header_filter_module.o \
objs/src/http/modules/ngx_http_chunked_filter_module.o \
objs/src/http/modules/ngx_http_range_filter_module.o \
objs/src/http/modules/ngx_http_gzip_filter_module.o \
objs/src/http/ngx_http_postpone_filter_module.o \
objs/src/http/modules/ngx_http_ssi_filter_module.o \
objs/src/http/modules/ngx_http_charset_filter_module.o \
objs/src/http/modules/ngx_http_userid_filter_module.o \
objs/src/http/modules/ngx_http_headers_filter_module.o \
objs/src/http/ngx_http_copy_filter_module.o \
objs/src/http/modules/ngx_http_not_modified_filter_module.o \
objs/src/http/modules/ngx_http_static_module.o \
objs/src/http/modules/ngx_http_autoindex_module.o \
objs/src/http/modules/ngx_http_index_module.o \
objs/src/http/modules/ngx_http_mirror_module.o \
objs/src/http/modules/ngx_http_try_files_module.o \
objs/src/http/modules/ngx_http_auth_request_module.o \
objs/src/http/modules/ngx_http_auth_basic_module.o \
objs/src/http/modules/ngx_http_access_module.o \
objs/src/http/modules/ngx_http_limit_conn_module.o \
objs/src/http/modules/ngx_http_limit_req_module.o \
objs/src/http/modules/ngx_http_geo_module.o \
objs/src/http/modules/ngx_http_map_module.o \
objs/src/http/modules/ngx_http_split_clients_module.o \
objs/src/http/modules/ngx_http_referer_module.o \
objs/src/http/modules/ngx_http_rewrite_module.o \
objs/src/http/modules/ngx_http_ssl_module.o \
objs/src/http/modules/ngx_http_proxy_module.o \
objs/src/http/modules/ngx_http_fastcgi_module.o \
objs/src/http/modules/ngx_http_upstream_zone_module.o \
objs/src/http/modules/ngx_http_stub_status_module.o \
objs/ngx_modules.o \
-ldl -lpthread -lcrypt -lpcre -lssl -lcrypto -ldl -lpthread -lz \
-Wl,-E
sed -e "s|%%PREFIX%%|/usr/local/nginx|" \
-e "s|%%PID_PATH%%|/usr/local/nginx/logs/nginx.pid|" \
-e "s|%%CONF_PATH%%|/usr/local/nginx/conf/nginx.conf|" \
-e "s|%%ERROR_LOG_PATH%%|/usr/local/nginx/logs/error.log|" \
< man/nginx.8 > objs/nginx.8
make[1]: 离开目录“/test/tengine/tengine-2.3.2”
因为内容太多，我删了一部分，make编译会显示很多内容。
6.安装
命令：make?? install
[root@localhost tengine-2.3.2]# make install
make -f objs/Makefile install
make[1]: 进入目录“/test/tengine/tengine-2.3.2”
test -d '/usr/local/nginx' || mkdir -p '/usr/local/nginx'
test -d '/usr/local/nginx/sbin' \
|| mkdir -p '/usr/local/nginx/sbin'
test ! -f '/usr/local/nginx/sbin/nginx' \
|| mv '/usr/local/nginx/sbin/nginx' \
'/usr/local/nginx/sbin/nginx.old'
cp objs/nginx '/usr/local/nginx/sbin/nginx'
test -d '/usr/local/nginx/conf' \
|| mkdir -p '/usr/local/nginx/conf'
cp conf/koi-win '/usr/local/nginx/conf'
cp conf/koi-utf '/usr/local/nginx/conf'
cp conf/win-utf '/usr/local/nginx/conf'
test -f '/usr/local/nginx/conf/mime.types' \
|| cp conf/mime.types '/usr/local/nginx/conf'
cp conf/mime.types '/usr/local/nginx/conf/mime.types.default'
test -f '/usr/local/nginx/conf/fastcgi_params' \
|| cp conf/fastcgi_params '/usr/local/nginx/conf'
cp conf/fastcgi_params \
'/usr/local/nginx/conf/fastcgi_params.default'
test -f '/usr/local/nginx/conf/fastcgi.conf' \
|| cp conf/fastcgi.conf '/usr/local/nginx/conf'
cp conf/fastcgi.conf '/usr/local/nginx/conf/fastcgi.conf.default'
test -f '/usr/local/nginx/conf/uwsgi_params' \
|| cp conf/uwsgi_params '/usr/local/nginx/conf'
cp conf/uwsgi_params \
'/usr/local/nginx/conf/uwsgi_params.default'
test -f '/usr/local/nginx/conf/scgi_params' \
|| cp conf/scgi_params '/usr/local/nginx/conf'
cp conf/scgi_params \
'/usr/local/nginx/conf/scgi_params.default'
test -f '/usr/local/nginx/conf/nginx.conf' \
|| cp conf/nginx.conf '/usr/local/nginx/conf/nginx.conf'
cp conf/nginx.conf '/usr/local/nginx/conf/nginx.conf.default'
test -d '/usr/local/nginx/logs' \
|| mkdir -p '/usr/local/nginx/logs'
test -d '/usr/local/nginx/logs' \
|| mkdir -p '/usr/local/nginx/logs'
test -d '/usr/local/nginx/html' \
|| cp -R html '/usr/local/nginx'
test -d '/usr/local/nginx/logs' \
|| mkdir -p '/usr/local/nginx/logs'
make[1]: 离开目录“/test/tengine/tengine-2.3.2”
7.启动测试
可能之前的实验，安装过httpd服务。如果直接启动nginx会有冲突，确保关闭httpd
命令：systemctl? stop? httpd
/usr/local/nginx/sbin/nginx???? //启动
systemctl? stop? firewalld??? //关闭防火墙
[root@localhost tengine-2.3.2]# systemctl stop httpd
[root@localhost tengine-2.3.2]# /usr/local/nginx/sbin/nginx
[root@localhost tengine-2.3.2]# systemctl stop firewalld
?使用浏览器访问本机ip：http://127.0.0.1，如果能看到NGINX的网页，说明部署成功。
总结
??????? 通过本文章了解源码包，学习获取源码包，安装程序，注意要联网，不然会下载失败的。
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