Lua中的逻辑运算符使用详解

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：

代码如下：

a = 5

b = 20

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：

代码如下：

Line 1 - Condition is true

Line 2 - Condition is true

Line 3 - Condition is true

Line 3 - Condition is not true