From 59509fc94ed0c85841c07d623bf4fa83f669f714 Mon Sep 17 00:00:00 2001
From: jaywcjlove <398188662@qq.com>
Date: Wed, 18 Oct 2023 16:06:44 +0800
Subject: [PATCH] doc: update docs/lua.md
---
docs/lua.md | 41 ++++++++++++++++++++++++++++++++---------
1 file changed, 32 insertions(+), 9 deletions(-)
diff --git a/docs/lua.md b/docs/lua.md
index e3313ea..60f8d53 100644
--- a/docs/lua.md
+++ b/docs/lua.md
@@ -97,7 +97,9 @@ local html = [[
- 简单编程
+
+ 简单编程
+
]]
@@ -211,6 +213,7 @@ print(x, y) -- 3, 1
```lua
local tab = {}
+
tab.one = 2
tab.two = 1
@@ -243,13 +246,13 @@ print(tab.one, tab.two) -- 1 2
:- | :-
:- | :-
-\+ | 加法
-\- | 减法
-\* | 乘法
-\/ | 除法
-\% | 取余，求出除法的余数
-\^ | 乘幂，计算次方
-\- | 负号，取负值
+`+` | 加法
+`-` | 减法
+`*` | 乘法
+`/` | 除法
+`%` | 取余，求出除法的余数
+`^` | 乘幂，计算次方
+`-` | 负号，取负值
```lua
local a, b = 4, 3
@@ -287,7 +290,27 @@ print(a ^ b) -- 64.0
print(type(tonumber("12"))) -- number
```
-
+
+### goto 语法
+
+
+```lua
+local function isValidNumber(num)
+ if type(num) ~= "number" then
+ goto invalidNumber -- 无条件地跳转到代码中的标签 `::invalidNumber::`
+ end
+
+ print("Valid number:", num)
+ return true
+
+ ::invalidNumber::
+ print("Invalid number:", num)
+ return false
+end
+
+isValidNumber(123) -- 输出: Valid number: 123
+isValidNumber("abc") -- 输出: Invalid number: abc
+```
条件语句
---