lua类似goto 类似raging loop,RunLoop(消息循环):说白了就是一种事件监听循环。就好比是一个while循环,监听到事件就起来,没有就休息。介绍:它可以在不同模式下进行切换,iOS有五种模式,其中UIInitializationRunLoopModel应用程序启动时会使用,启动完成后将不再使用;
} using std::cout; using std::endl; int CAdd(lua_State* L) { int a = lua_tonumber(L, 2); int b = lua_tonumber(L, 1);; int sum = a + b; lua_pushnumber(L, sum); return 1; } int main() { lua_State* L = luaL_newstate(); luaL_openlibs(L); lua_register(L, "CA...
setbvalue(ra, GETARG_B(i));if(GETARG_C(i)) pc++; /* skipnextinstruction (ifC) */continue; } case OP_LOADNIL: { TValue*rb =RB(i);do{ setnilvalue(rb--);}while(rb >=ra); continue; } case OP_GETUPVAL: { int b=GETARG_B(i); setobj2s(L, ra, cl->upvals[b]->v); ...
lua解释执行脚本流程 1#include"lua.hpp"23#include <iostream>4usingnamespacestd;56#pragmacomment(lib, "lua5.1.lib")78structlua_guard{9lua_State *pL;10lua_guard(lua_State *s) :pL(s){}11~lua_guard(){ lua_close(pL); }12};1314intmain(){15lua_guard g(lua_open());16luaL_openlibs(g...
updatetrap(ci); /* allows a signal to break the loop */ vmbreak; } vmcase(OP_FORPREP) { savestate(L, ci); /* in case of errors */ if (forprep(L, ra)) pc += GETARG_Bx(i) + 1; /* skip the loop */ vmbreak;
A break ends the innermost enclosing loop. The return statement is used to return values from a function or a chunk (which is handled as an anonymous function). Functions can return more than one value, so the syntax for the return statement is stat ::= return [explist] [‘;’] The ...
Keep in mind that when you define a font (using Lua) you can also omit the kern and ligature tables, which has the same effect as the above. 2.7.4 \nospaces This new primitive can be used to overrule the usual \spaceskip related heuristics when a space character is seen in a text ...
updatetrap(ci); /* allows a signal to break the loop */ vmbreak; } vmcase(OP_FORPREP) { savestate(L, ci); /* in case of errors */ if (forprep(L, ra)) pc += GETARG_Bx(i) + 1; /* skip the loop */
If you don't know what reflection is, a brief introduction is in order. If you do, just skip to the next paragraph. C# (likeJava ) has a very nifty feature: reflection. In a nutshell, it lets you rip apart any class, property or method at run time, without needing to know anythin...
if (GETARG_C(i)) pc++; /* skip next instruction (if C) */ continue; } case OP_LOADNIL: { TValue *rb = RB(i); do { setnilvalue(rb--); } while (rb >= ra); continue; } case OP_GETUPVAL: { int b = GETARG_B(i); ...