Update lua-ru.html.markdown

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Максим 2014-08-12 01:50:10 +06:00
parent d246b103a3
commit 5b8f64f5bb

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@ -144,7 +144,7 @@ local g; g = function (x) return math.sin(x) end
print 'hello' -- Работает без ошибок. print 'hello' -- Работает без ошибок.
-- Вызов функции с одним табличным параметром так же не требуют круглых скобок (про таблицы в след.части): -- Вызов функции с одним табличным параметром так же не требуют круглых скобок (про таблицы в след.части):
print {} -- Works fine too. print {} -- Тоже сработает.
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-- 3. Таблицы. -- 3. Таблицы.
@ -166,7 +166,7 @@ t.key2 = nil -- Удаляет key2 из таблицы.
-- Literal notation for any (non-nil) value as key: -- Literal notation for any (non-nil) value as key:
u = {['@!#'] = 'qbert', [{}] = 1729, [6.28] = 'tau'} u = {['@!#'] = 'qbert', [{}] = 1729, [6.28] = 'tau'}
print(u[6.28]) -- prints "tau" print(u[6.28]) -- пишет "tau"
-- Key matching is basically by value for numbers and strings, but by identity -- Key matching is basically by value for numbers and strings, but by identity
-- for tables. -- for tables.
@ -178,14 +178,14 @@ b = u[{}] -- We might expect 1729, but it's nil:
-- A one-table-param function call needs no parens: -- A one-table-param function call needs no parens:
function h(x) print(x.key1) end function h(x) print(x.key1) end
h{key1 = 'Sonmi~451'} -- Prints 'Sonmi~451'. h{key1 = 'Sonmi~451'} -- Печатает 'Sonmi~451'.
for key, val in pairs(u) do -- Итерация цикла с таблицей. for key, val in pairs(u) do -- Итерация цикла с таблицей.
print(key, val) print(key, val)
end end
-- _G is a special table of all globals. -- _G - это таблица со всеми глобалями.
print(_G['_G'] == _G) -- Prints 'true'. print(_G['_G'] == _G) -- Печатает 'true'.
-- Using tables as lists / arrays: -- Using tables as lists / arrays:
@ -198,7 +198,7 @@ end
-- keys, treated as a list. -- keys, treated as a list.
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-- 3.1 Metatables and metamethods. -- 3.1 Мета-таблицы и мета-методы.
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-- A table can have a metatable that gives the table operator-overloadish -- A table can have a metatable that gives the table operator-overloadish
@ -207,7 +207,7 @@ end
f1 = {a = 1, b = 2} -- Represents the fraction a/b. f1 = {a = 1, b = 2} -- Represents the fraction a/b.
f2 = {a = 2, b = 3} f2 = {a = 2, b = 3}
-- This would fail: -- Это не сработает:
-- s = f1 + f2 -- s = f1 + f2
metafraction = {} metafraction = {}
@ -221,7 +221,7 @@ end
setmetatable(f1, metafraction) setmetatable(f1, metafraction)
setmetatable(f2, metafraction) setmetatable(f2, metafraction)
s = f1 + f2 -- call __add(f1, f2) on f1's metatable s = f1 + f2 -- вызывает __add(f1, f2) на мета-таблице f1
-- f1, f2 have no key for their metatable, unlike prototypes in js, so you must -- f1, f2 have no key for their metatable, unlike prototypes in js, so you must
-- retrieve it as in getmetatable(f1). The metatable is a normal table with -- retrieve it as in getmetatable(f1). The metatable is a normal table with
@ -235,7 +235,7 @@ s = f1 + f2 -- call __add(f1, f2) on f1's metatable
defaultFavs = {animal = 'gru', food = 'donuts'} defaultFavs = {animal = 'gru', food = 'donuts'}
myFavs = {food = 'pizza'} myFavs = {food = 'pizza'}
setmetatable(myFavs, {__index = defaultFavs}) setmetatable(myFavs, {__index = defaultFavs})
eatenBy = myFavs.animal -- works! thanks, metatable eatenBy = myFavs.animal -- работает! спасибо, мета-таблица.
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-- Direct table lookups that fail will retry using the metatable's __index -- Direct table lookups that fail will retry using the metatable's __index
@ -247,21 +247,21 @@ eatenBy = myFavs.animal -- works! thanks, metatable
-- Values of __index,add, .. are called metamethods. -- Values of __index,add, .. are called metamethods.
-- Full list. Here a is a table with the metamethod. -- Full list. Here a is a table with the metamethod.
-- __add(a, b) for a + b -- __add(a, b) для a + b
-- __sub(a, b) for a - b -- __sub(a, b) для a - b
-- __mul(a, b) for a * b -- __mul(a, b) для a * b
-- __div(a, b) for a / b -- __div(a, b) для a / b
-- __mod(a, b) for a % b -- __mod(a, b) для a % b
-- __pow(a, b) for a ^ b -- __pow(a, b) для a ^ b
-- __unm(a) for -a -- __unm(a) для -a
-- __concat(a, b) for a .. b -- __concat(a, b) для a .. b
-- __len(a) for #a -- __len(a) для #a
-- __eq(a, b) for a == b -- __eq(a, b) для a == b
-- __lt(a, b) for a < b -- __lt(a, b) для a < b
-- __le(a, b) for a <= b -- __le(a, b) для a <= b
-- __index(a, b) <fn or a table> for a.b -- __index(a, b) <fn or a table> для a.b
-- __newindex(a, b, c) for a.b = c -- __newindex(a, b, c) для a.b = c
-- __call(a, ...) for a(...) -- __call(a, ...) для a(...)
-------------------------------------------------------------------------------- --------------------------------------------------------------------------------
-- 3.2 Class-like tables and inheritance. -- 3.2 Class-like tables and inheritance.
@ -335,7 +335,7 @@ function LoudDog:new()
end end
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-- 4. Modules. -- 4. Модули.
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