From 48b67927c5cb4c85101212c800dba898e2981a6a Mon Sep 17 00:00:00 2001
From: flykhan <liubo666666@outlook.com>
Date: Thu, 15 Jun 2023 14:19:08 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8F=98=E9=87=8F=E7=B1=BB=E5=9E=8B=E5=A4=A7?=
 =?UTF-8?q?=E5=B0=8F=20&=20=E5=8F=98=E9=87=8F=E5=90=8D=E8=A7=84=E5=88=99?=
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---
 day4/d3.cpp | 10 ++++++++++
 day4/d4.cpp | 13 +++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 day4/d3.cpp
 create mode 100644 day4/d4.cpp

diff --git a/day4/d3.cpp b/day4/d3.cpp
new file mode 100644
index 0000000..b339e1f
--- /dev/null
+++ b/day4/d3.cpp
@@ -0,0 +1,10 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int $123 = 10;
+    cout << $123 << endl;
+    return 0;
+}
diff --git a/day4/d4.cpp b/day4/d4.cpp
new file mode 100644
index 0000000..0b1c3f1
--- /dev/null
+++ b/day4/d4.cpp
@@ -0,0 +1,13 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int n; // 定义变量时, 默认初始化值为 0
+    // cout << "n = " << n << endl;
+
+    // '\t' 转义字符, 表示为 <Tab> 制表符, 一般情况下, 一个制表符占 4 个空格
+    cout << n << "\t data type is " << sizeof(n) << endl;
+    return 0;
+}
\ No newline at end of file