Multiple returned values In Lua, a function mayreturnany number of values. tolua usesthisfeature to simulate values passed by reference. If a function parameterisspecifiedasa pointer to or reference of a basic
--[[ 使用函数返回值对多个变量赋值,规则和多参数赋值一样,如果函数返回值多了,则抛弃,少了则少的赋值为nil ]] function myFirstLuaFunctionWithMultipleReturnValues(a,b,c) return a,b,c,"My first lua function with multiple return values", 1, true end a,b,c,d,e,f = myFirstLuaFunctionWithMul...
function add(a, b) return a + bendlocal result = add(3, 4)print(result) -- 输出: 7 多返回值： Lua 支持多返回值。函数可以返回多个值，用逗号分隔。function multipleValues() return 1, 2, 3endlocal a, b, c = multipleValues()print(a, b, c) -- 输出: 1 2 3 匿名函数： ...
(5, 2); assert(result == 7); // Call function that returns multiple values int sum, difference; sel::tie(sum, difference) = state["sum_and_difference"](3, 1); assert(sum == 4 && difference == 2); // Call function in table result = state["mytable"]["foo"](); assert(...
functionadd(a, b)returna + b endlocalresult = add(3, 4)print(result) -- 输出: 7 多返回值:Lua支持多返回值。函数可以返回多个值,用逗号分隔。 functionmultipleValues()return1, 2, 3 endlocala, b, c = multipleValues()print(a, b, c) -- 输出: 1 2 3 ...
首先来看这个注释:Lua can return multiple values, for this reason DoString return a array of objects,就是直接调用DoString方法的时候返回的结果是一个object[]类型,所以这里需要取结果的时候要取用第一个 图三DoString生成结果 2.2 注册Lua Function
Like@type, is also supports type lists for casting multiple return values of a function, and can itself eliminate unions: When you simply want to eliminate types from a union, it’s generally safer to use@notcast than a@typecast because a@typecast essentially disables all type checking for ...
The simplest way to implement a function is to choose a base class based on the number of arguments to the function. LuaJ provides 5 base classes for this purpose, depending if the function has 0, 1, 2, 3 or variable arguments, and if it provide multiple return values. ...
varres = state.DoString ("return 10 + 3*(5 + 2)")[0]asdouble;// Lua can return multiple values, for this reason DoString return a array of objects Passing raw values to the state: doubleval =12.0; state ["x"] = val;// Create a global value 'x'varres = (double)state.DoString...
/* ** Union of all Lua values */ typedef union Value { struct GCObject *gc; /* collectable objects */ void *p; /* light userdata */ lua_CFunction f; /* light C functions */ lua_Integer i; /* integer numbers */ lua_Number n; /* float numbers */ } Value; typedef unsigned ...