Lua返回一个Closures函数实例
do
functionButton(x)
print("CallButton");
x.action();
print(x.label);
end
functionadd_to_display(digit) print("Calladd_to_display"); print(digit); end
functiondigitButton(digit) returnButton{//returnatableandthefunction(Button),itmeansthattheButtonreceivestheparam(thetable{...}) label=tostring(digit), action=function() print("digit:",digit); add_to_display(digit); end }
end
localfun=digitButton(3);
end