== 检查两个操作数的值是否相等，如果是则条件变为真。 (A == B) 不为 true.
~= 检查两个操作数的值是否相等，如果值不相等，则条件变为真。 (A ~= B) 为 true.
> 检查左操作数的值是否大于右操作数的值，如果是，则条件成立。 (A > B) 不为 true.
< 检查左操作数的值是否小于右操作数的值，如果是，则条件成立。 (A < B)  为  true.
>= 检查左操作数的值是否大于或等于右操作数的值，如果是，则条件成立。 (A >= B) 不为 true.
<= 检查左操作数的值是否小于或等于右操作数的值，如果是，则条件成立。 (A <= B)  为  true.

## 示例

```a = 21
b = 10

if( a == b )
then
print("Line 1 - a is equal to b" )
else
print("Line 1 - a is not equal to b" )
end

if( a ~= b )
then
print("Line 2 - a is not equal to b" )
else
print("Line 2 - a is equal to b" )
end

if ( a < b )
then
print("Line 3 - a is less than b" )
else
print("Line 3 - a is not less than b" )
end

if ( a > b )
then
print("Line 4 - a is greater than b" )
else
print("Line 5 - a is not greater than b" )
end

-- Lets change value of a and b
a = 5
b = 20
if ( a <= b )
then
print("Line 5 - a is either less than or equal to  b" )
end

if ( b >= a )
then
print("Line 6 - b is either greater than  or equal to b" )
end```

```Line 1 - a is not equal to b
Line 2 - a is not equal to b
Line 3 - a is not less than b
Line 4 - a is greater than b
Line 5 - a is either less than or equal to  b
Line 6 - b is either greater than  or equal to b```