In your example, you function is expecting ham of type str, and eggs of type str (defaulting to eggs). 背景 str(short tandem repeat,短串联重复序列)是指dna序列中存在的一种特殊模式,即一串较短的核苷酸序列重复排列。 在个体身份鉴定方面,str检测被广泛应用于法医学领域,. __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.
Stoeger Str9 Magazine Compatibility Chart
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: What are the differences between them, and when should one be used over the other? 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?
