From 2a5a23bffd149e01fb2b082a717e9b3b3ecbe955 Mon Sep 17 00:00:00 2001
From: skimrme <ww3masster@1win.eu.org>
Date: Thu, 20 Nov 2025 02:11:28 +0000
Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9E=E5=9F=BA=E6=9C=AC=E6=95=B0?=
 =?UTF-8?q?=E6=8D=AE=E7=BB=93=E6=9E=84=E5=AD=A6=E4=B9=A0?=
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---
 4.基本数据类型.go | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 4.基本数据类型.go

diff --git a/4.基本数据类型.go b/4.基本数据类型.go
new file mode 100644
index 0000000..5dfaf36
--- /dev/null
+++ b/4.基本数据类型.go
@@ -0,0 +1,37 @@
+package main
+
+import "fmt"
+
+func main() {
+	type_()
+
+}
+
+func type_() {
+	var age int = 12  // 设定类型为数字
+	fmt.Println(age)
+
+	var text = "Hello mfk\n"  // 自动识别类型
+	fmt.Printf(text)
+
+	// uint + x
+	// x 是比特的位数
+	var u8 uint8 = 255  
+	// 0 0 0 0 0 0 0 0 = 0
+	// 1 1 1 1 1 1 1 1 = 2^8-1=255
+	fmt.Println(u8)
+	// int8  支持正负数
+	// 0    0 0 0 0 0 0 0   = 1
+	// 0    1 1 1 1 1 1 1   = 2^(8-1)-1=127   // 一个比特位区分正负了
+
+	// 1    0 0 0 0 0 0 1   = -1  负数的最大值 
+	// 1    0 0 0 0 0 0 0   = -128
+
+//######################################################
+	// 源码 补码 （取反=反码+1）听不懂，标记一下，下次学
+//######################################################
+	
+
+
+}
+