lua中的table

mytable = { hello}

print(table.getn(mytable))

--结果为0 不加引号不计入元素的 不加引号表示索引值, 如果赋值可以用mytable["hello"]或mytable.hello来访问

mytable = { "hello" }

print(table.getn(mytable))

--结果为1, 表示mytable[1元素的值为"hello"字符串

mytable =

{

hello = "hello",world = "world",

{

x = 100, y = 100

};

{

x = 200, y = 200

}

}

print(table.getn(mytable))

for i = 1, table.getn(mytable)

do

str = string.format("index %d: x = %d, y = %d", i, mytable[i].x, mytable[i].y)

print(str)

end

print(mytable["hello"])

print(mytable.world)

mytable = { hello, world}

print(table.getn(mytable))

print(mytable.hello, mytable[1])

--0

--nil nil

mytable = { "hello"}

print(table.getn(mytable))

print(mytable.hello, mytable[1])

--1

--nil nil

------------------结果如下-------------------

>lua -e "io.stdout:setvbuf 'no'" "test.lua"

2

index 1: x = 100, y = 100

index 2: x = 200, y = 200

hello

world

0

nil nil

1

nil hello

>Exit code: 0

--lua表中可以用,也可以用分号, 没区别