eq equal : 相等

neq not equal：不等于

gt greater than：大于

lt less than：小于

lte less than or equal：小于等于

gte great than or equal：大于等于

is even：是偶數(shù)

is odd：是奇數(shù)

is not even：不是偶數(shù)

is not odd不是奇數(shù)

not：非

mod：取余

div by：被。。。除