update

.gitignore

@@ -1,4 +1,5 @@
 todolist.md
 tmp
 docs
-.obsidian
+.obsidian
+.DS_Store

Makefile

@@ -1,4 +1,6 @@
-name?=
+name:=default
+type:=default
+
 all:
 	make build
 	make push
@@ -9,6 +11,8 @@ push:
 	git commit -am "update"
 	git push
 new:
+	hugo new $(type)/$(name)/index.md
+post:
 	hugo new posts/2023/$(name)/index.md
 serve:
 	hugo serve

content/about/index.md

@@ -12,7 +12,7 @@ date: 2018-01-31 12:09:09
 - 精通JavaScript/Node.js，现在的兴趣是学习go语言
 - 精通VOIP相关技术栈：SIP/opensips/Freeswitch等等
 - 精通VIM
-- email: 1779706607@qq.com
+- email: eddie0501@qq.com
 - Github: [github.com/wangduanduan](https://github.com/wangduanduan)
 - 语雀: [yuque.com/wangdd](https://yuque.com/wangdd), 将不会更新
 - 个人博客: [wdd.js.org](https://wdd.js.org), 最新内容将会发布在wdd.js.org

content/golang/go1.21/index.md

@@ -0,0 +1,84 @@
+---
+title: "Go1.21发布"
+date: "2023-08-10 11:20:47"
+draft: false
+type: posts
+tags:
+- all
+categories:
+- golang
+---
+
+golang每隔6个月发布一个新的次版本号升级。一般是是2月一个版本，8月一个版本
+
+# 语言层面
+## 增加内置函数
+### min() max() 
+> 参考 https://tip.golang.org/ref/spec#Min_and_max
+
+
+The built-in functions min and max compute the smallest—or largest, respectively—value of a fixed number of arguments of ordered types. There must be at least one argument.
+
+The same type rules as for operators apply: for ordered arguments x and y, min(x, y) is valid if x + y is valid, and the type of min(x, y) is the type of x + y (and similarly for max). If all arguments are constant, the result is constant.
+
+```go
+var x, y int
+m := min(x)                 // m == x
+m := min(x, y)              // m is the smaller of x and y
+m := max(x, y, 10)          // m is the larger of x and y but at least 10
+c := max(1, 2.0, 10)        // c == 10.0 (floating-point kind)
+f := max(0, float32(x))     // type of f is float32
+var s []string
+_ = min(s...)               // invalid: slice arguments are not permitted
+t := max("", "foo", "bar")  // t == "foo" (string kind)
+```
+
+For numeric arguments, assuming all NaNs are equal, min and max are commutative and associative:
+
+```go
+min(x, y)    == min(y, x)
+min(x, y, z) == min(min(x, y), z) == min(x, min(y, z))
+```
+
+For floating-point arguments negative zero, NaN, and infinity the following rules apply:
+
+```go
+   x        y    min(x, y)    max(x, y)
+
+  -0.0    0.0         -0.0          0.0    // negative zero is smaller than (non-negative) zero
+  -Inf      y         -Inf            y    // negative infinity is smaller than any other number
+  +Inf      y            y         +Inf    // positive infinity is larger than any other number
+   NaN      y          NaN          NaN    // if any argument is a NaN, the result is a NaN
+```
+
+For string arguments the result for min is the first argument with the smallest (or for max, largest) value, compared lexically byte-wise:
+
+```go
+min(x, y)    == if x <= y then x else y
+min(x, y, z) == min(min(x, y), z)
+```
+
+### clear() 
+> https://tip.golang.org/ref/spec#Clear
+
+The built-in function clear takes an argument of map, slice, or type parameter type, and deletes or zeroes out all elements.
+
+```go
+Call        Argument type     Result
+
+clear(m)    map[K]T           deletes all entries, resulting in an
+                              empty map (len(m) == 0)
+
+clear(s)    []T               sets all elements up to the length of
+                              s to the zero value of T
+
+clear(t)    type parameter    see below
+```
+
+If the type of the argument to clear is a type parameter, all types in its type set must be maps or slices, and clear performs the operation corresponding to the actual type argument.
+
+If the map or slice is nil, clear is a no-op.
+
+
+# 参考
+- https://go.dev/doc/go1.21#

content/makefile/tutorial/Makefile

@@ -0,0 +1,12 @@
+# Recursive variable. This will print "later" below
+one = one ${later_variable}
+one = $(one) abc
+# Simply expanded variable. This will not print "later" below
+two := two ${later_variable}
+two := $(two) abc
+
+later_variable = later
+
+all: 
+	echo $(one)
+	echo $(two)

content/makefile/tutorial/index.md

@@ -0,0 +1,27 @@
+---
+title: "Tutorial"
+date: "2023-08-10 09:47:46"
+draft: true
+type: posts
+tags:
+- make
+- makefile
+categories:
+- makefile
+---
+
+# 语法
+
+```Makefile
+targets: prerequisites
+	command
+	command
+	command
+```
+
+- targets是文件名，可以用空格分开多个文件名，一般情况下，只有一个
+- command是一系列的指令，可以多行分开
+- prerequisites是依赖项目，可以用空格分开多个
+
+# 参考
+- https://makefiletutorial.com/#makefile-cookbook

content/posts/2023/macbook-icloud-sync-stuck/index.md

@@ -0,0 +1,29 @@
+---
+title: "MacBook icloud 同步卡死， 请尝试重启电脑"
+date: "2023-08-20 13:07:40"
+draft: false
+type: posts
+tags:
+- macos
+- icloud
+categories:
+- all
+---
+
+# 环境说明
+- MacBook Pro M2
+- 系统版本 13.4.1
+- 网络环境为wifi
+
+
+# 操作步骤
+
+我往icloud的文件夹下，粘贴几个文件夹，文件的内容挺多的，然后finder上显示icloud的状态就一直是处于同步中了。
+
+等了好久，同步的过程似乎卡住了。
+
+网上看了一些解决方案，似乎都没啥作用。
+
+我想起来以前的同样的一次卡顿同步的解决方案：重启电脑
+
+于是，我重启了一次电脑，再次开机，打开finder, icloud文件状态非常快同步完了。