類型強制

print(100 + "7") -- 107
print(100 - "7") -- 93
print("1000" + 234) -- 1234
print("1000" - 234) -- 766
print("hello" + 234) -- 錯誤: 嘗試對字串和數字進行算術運算 (加法)

print("圓周率是 " .. math.pi) --> 圓周率是 3.1415926535898
print("圓周率是 " .. 3.1415927) --> 圓周率是 3.1415927

-- 四捨五入到小數點後三位
print("圓周率是 " .. string.format("%.3f", 3.1415927)) -- 圓周率是 3.142

local Workspace = game:GetService("Workspace")

local part1 = Instance.new("Part")
part1.Material = 816
part1.Parent = Workspace
print(part1.Material) -- Enum.Material.Concrete

local part2 = Instance.new("Part")
part2.Material = "Concrete"
part2.Parent = Workspace
print(part2.Material) -- Enum.Material.Concrete

-- 這是最佳實踐，因為它是最明確的
local part3 = Instance.new("Part")
part3.Material = Enum.Material.Concrete
part3.Parent = Workspace
print(part3.Material) -- Enum.Material.Concrete

local Lighting = game:GetService("Lighting")

Lighting.TimeOfDay = "05:00:00"
print(Lighting.TimeOfDay) -- 05:00:00

Lighting.TimeOfDay = 5
print(Lighting.TimeOfDay) -- 05:00:00