7、編譯通過，運作會報錯：
09:26:00: Starting /root/Downloads/nginx/nginx-1.12.2/build-nginxQtProject_firecat-Desktop_Qt_5_9_7_GCC_64bit-Debug/nginx...
nginx: [alert] could not open error log file: open() "/usr/local/nginx/logs/error.log" failed (2: No such file or directory)
2018/11/04 09:26:00 [emerg] 13081#0: open() "/usr/local/nginx/conf/nginx.conf" failed (2: No such file or directory)
09:26:00: /root/Downloads/nginx/nginx-1.12.2/build-nginxQtProject_firecat-Desktop_Qt_5_9_7_GCC_64bit-Debug/nginx exited with code 1
解決辦法：手動建立/usr/local/nginx/logs和conf路徑，把配置檔案拷貝過來。
另外，html檔案夾（裡面有兩個檔案）也記得拷貝到/usr/local/nginx/路徑下。
8、我們終于可以執行斷點調試，大功告成！
nginx啟動之後，在浏覽器輸入http://localhost/，即可看到index.html網頁。
9、附錄：完整的Qt工程源碼下載下傳
https://download.csdn.net/download/libaineu2004/10763167---
參考文獻：
https://blog.csdn.net/zileqide/article/details/76736668檢視nginx是否啟動成功
netstat -lnpt | grep nginx
或者ps -ef |grep nginx 檢視nginx程序是否啟動
或者netstat -nalp|grep 80 檢視80端口的程序
終止nginx
kill -9 <nginx程序号>（一般有2~3個程序，通過netstat -lnpt | grep nginx指令可以查詢程序号）
例如kill -9 36533
2、源碼準備
使用黃建宏的帶中文注釋的版本，
https://github.com/huangz1990/redis-3.0-annotated我們解壓源碼，先使用gcc編譯，主要目的是把deps庫編譯出來
[root@localhost redis_study]# chmod -R 777 redis-3.0-annotated-unstable
[root@localhost redis_study]# cd redis-3.0-annotated-unstable/
[root@localhost redis-3.0-annotated-unstable]# make
3、和nginx源碼不同，redis的結構更複雜，因為nginx的編譯結果是單一的執行檔案，而redis會生成N多個執行檔案：
redis-server
redis-cli
redis-benchmark
redis-check-aof
redis-check-dump
redis-sentinel
是以，我們建立的Qt Creator必須是多個子項目類型：
4、redisQtProject.pro，firecat這裡隻關注最主要的redis-server和redis-cli兩個執行程式
TEMPLATE = subdirs
CONFIG += ordered
SUBDIRS += \
redis-server \
redis-cli
common.pri，因為前面已經把deps的庫編譯好了，這裡隻需要添加庫依賴即可
isEmpty(PREFIX_SRC) {
PREFIX_SRC = ../../src
}
isEmpty(PREFIX_DEPS) {
PREFIX_DEPS = ../../deps
}
LIBS = -ldl -lpthread -lcrypt -lpcre -lz
LIBS += "$$PREFIX_DEPS/hiredis/libhiredis.a"
LIBS += "$$PREFIX_DEPS/lua/src/liblua.a"
INCLUDEPATH += \
#$$PREFIX_SRC/ \
$$PREFIX_DEPS/hiredis \
#$$PREFIX_DEPS/hiredis/adapters \
$$PREFIX_DEPS/jemalloc/include/ \
$$PREFIX_DEPS/jemalloc/include/jemalloc/internal \
#$$PREFIX_DEPS/jemalloc/include/msvc_compat \
$$PREFIX_DEPS/linenoise \
$$PREFIX_DEPS/lua/src \
$$PREFIX_DEPS/lua/etc
HEADERS += \
$$PREFIX_SRC/adlist.h \
$$PREFIX_SRC/ae.h \
$$PREFIX_SRC/anet.h \
$$PREFIX_SRC/asciilogo.h \
$$PREFIX_SRC/bio.h \
$$PREFIX_SRC/cluster.h \
$$PREFIX_SRC/config.h \
$$PREFIX_SRC/crc64.h \
$$PREFIX_SRC/dict.h \
$$PREFIX_SRC/endianconv.h \
$$PREFIX_SRC/fmacros.h \
$$PREFIX_SRC/help.h \
$$PREFIX_SRC/intset.h \
$$PREFIX_SRC/lzf.h \
$$PREFIX_SRC/lzfP.h \
$$PREFIX_SRC/pqsort.h \
$$PREFIX_SRC/rand.h \
$$PREFIX_SRC/rdb.h \
$$PREFIX_SRC/redis.h \
$$PREFIX_SRC/redisassert.h \
$$PREFIX_SRC/release.h \
$$PREFIX_SRC/rio.h \
$$PREFIX_SRC/sds.h \
$$PREFIX_SRC/sha1.h \
$$PREFIX_SRC/slowlog.h \
$$PREFIX_SRC/solarisfixes.h \
$$PREFIX_SRC/testhelp.h \
$$PREFIX_SRC/util.h \
$$PREFIX_SRC/version.h \
$$PREFIX_SRC/ziplist.h \
$$PREFIX_SRC/zipmap.h \
$$PREFIX_SRC/zmalloc.h \
$$PREFIX_DEPS/linenoise/linenoise.h
redis-server.pro
TARGET = redis-server
include(../common.pri)
SOURCES += \
$$PREFIX_SRC/adlist.c \
$$PREFIX_SRC/ae.c \
$$PREFIX_SRC/ae_epoll.c \
$$PREFIX_SRC/ae_evport.c \
$$PREFIX_SRC/ae_kqueue.c \
$$PREFIX_SRC/ae_select.c \
$$PREFIX_SRC/anet.c \
$$PREFIX_SRC/aof.c \
$$PREFIX_SRC/bio.c \
$$PREFIX_SRC/bitops.c \
$$PREFIX_SRC/blocked.c \
$$PREFIX_SRC/cluster.c \
$$PREFIX_SRC/config.c \
$$PREFIX_SRC/crc16.c \
$$PREFIX_SRC/crc64.c \
$$PREFIX_SRC/db.c \
$$PREFIX_SRC/debug.c \
$$PREFIX_SRC/dict.c \
$$PREFIX_SRC/endianconv.c \
$$PREFIX_SRC/hyperloglog.c \
$$PREFIX_SRC/intset.c \
$$PREFIX_SRC/lzf_c.c \
$$PREFIX_SRC/lzf_d.c \
$$PREFIX_SRC/memtest.c \
$$PREFIX_SRC/multi.c \
$$PREFIX_SRC/networking.c \
$$PREFIX_SRC/notify.c \
$$PREFIX_SRC/object.c \
$$PREFIX_SRC/pqsort.c \
$$PREFIX_SRC/pubsub.c \
$$PREFIX_SRC/rand.c \
$$PREFIX_SRC/rdb.c \
#$$PREFIX_SRC/redis-benchmark.c \
#$$PREFIX_SRC/redis-check-aof.c \
#$$PREFIX_SRC/redis-check-dump.c \
#$$PREFIX_SRC/redis-cli.c \
#$$PREFIX_SRC/redis.c \
$$PREFIX_SRC/release.c \
$$PREFIX_SRC/replication.c \
$$PREFIX_SRC/rio.c \
$$PREFIX_SRC/scripting.c \
$$PREFIX_SRC/sds.c \
$$PREFIX_SRC/sentinel.c \
$$PREFIX_SRC/setproctitle.c \
$$PREFIX_SRC/sha1.c \
$$PREFIX_SRC/slowlog.c \
$$PREFIX_SRC/sort.c \
$$PREFIX_SRC/syncio.c \
$$PREFIX_SRC/t_hash.c \
$$PREFIX_SRC/t_list.c \
$$PREFIX_SRC/t_set.c \
$$PREFIX_SRC/t_string.c \
$$PREFIX_SRC/t_zset.c \
$$PREFIX_SRC/util.c \
$$PREFIX_SRC/ziplist.c \
$$PREFIX_SRC/zipmap.c \
$$PREFIX_SRC/zmalloc.c \
$$PREFIX_DEPS/linenoise/linenoise.c
SOURCES += \
$$PREFIX_SRC/redis.c
redis-cli.pro檔案類似，這裡不再贅述。
5、我們終于可以執行斷點調試，大功告成！
6、附錄：完整的Qt工程源碼下載下傳
https://download.csdn.net/download/libaineu2004/10763933