下表列出了所有的Lua语言支持的逻辑运算符。假设变量A持有true，而变量B持有false：
示例
试试下面的例子就明白了所有的Lua编程语言提供的逻辑运算符：
if ( a and b )
then
print("Line 1 - Condition is true" )
end
if ( a or b )
then
print("Line 2 - Condition is true" )
end
--lets change the value ofa and b
a = 0
b = 10
if ( a and b )
then
print("Line 3 - Condition is true" )
else
print("Line 3 - Condition is not true" )
end
if ( not( a and b) )
then
print("Line 4 - Condition is true" )
else
print("Line 3 - Condition is not true" )
end
当建立并执行上面的程序它会产生以下结果：
原文：http://www.jb51.net/article/66858.htm