__str__ if you print an object, or pass it to format, str.format, or str, then if a __str__ method is defined, that method will be called, otherwise, __repr__ will be used. What are the differences between them, and when should one be used over the other? Str ()的底层实际是下面两个特殊方法,它会根据情况调用其中的一个: __str__默认的首选方法。 __repr__,一个备胎,在没有__str__方法时使用它。 我们把上面的类改写为:
Stoeger STR9 StrikerFired 9mm EDC Pistol Review Handguns
Is one of them getting deprecated?
2 人赞同了该回答 int就是转换为数字,是整数,比如说 1 float也是转换为数字,但是保留小数点,比如说1.1 str是数字转字符串,比如说4转换为'4'。
Use __str__ if you have a class, and you'll want an. Why does rust have both string and str?