diff --git a/2_lesson/04_quote/main.c b/2_lesson/04_quote/main.c
index 3b6be86..b65175c 100644
--- a/2_lesson/04_quote/main.c
+++ b/2_lesson/04_quote/main.c
@@ -11,7 +11,7 @@ int main(int argc, char *argv[])
     int i;
     for(i = 0; i< sizeof(a) / sizeof(int);i++)
     {
-        printf("a[%d] = %d\n",i,a[i]);
+        printf("a[%d] = %d\n",i,a[i]); 
     }
 
     printf("************************\n");
diff --git a/2_lesson/05_array_char/.gitignore b/2_lesson/05_array_char/.gitignore
new file mode 100644
index 0000000..fab7372
--- /dev/null
+++ b/2_lesson/05_array_char/.gitignore
@@ -0,0 +1,73 @@
+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+
diff --git a/2_lesson/05_array_char/05_array_char.pro b/2_lesson/05_array_char/05_array_char.pro
new file mode 100644
index 0000000..fc18d89
--- /dev/null
+++ b/2_lesson/05_array_char/05_array_char.pro
@@ -0,0 +1,6 @@
+TEMPLATE = app
+CONFIG += console
+CONFIG -= app_bundle
+CONFIG -= qt
+
+SOURCES += main.c
diff --git a/2_lesson/05_array_char/main.c b/2_lesson/05_array_char/main.c
new file mode 100644
index 0000000..e03fd66
--- /dev/null
+++ b/2_lesson/05_array_char/main.c
@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+    // 定义一个字符数组，通过scanf函数输入字符串并输出结果
+    // 通过赋值""这样的方式可以清除字符数组中的垃圾字符，让每一个元素都是\0
+    char ch[32] = "";
+
+    // 数组名就是当前数组的首地址，所以scanf的第二个参数直接传数组名即可
+    scanf("%s", ch);
+
+    printf("ch = %s\n", ch);
+
+    return 0;
+}