引述官方文档
Value comparisons:
The operators "<", ">", "==", ">=", "<=", and "!=" compare the values
of two objects. The objects do not need to have the same type.
Identity comparisons:
The operators "is" and "is not" test for object identity: "x is y" is
true if and only if *x* and *y* are the same object. Object identity
is determined using the "id()" function. "x is not y" yields the
inverse truth value.
- 由官方文档解释可知：
- is 判断的是两个对象的ID
- == 判断的是两个对象的值