#!/usr/bin/python class InfSeq: def __init__(self): self.x = 0 def __next__(self): self.x += 1 return self.x ** self.x def __iter__(self): return self infseq = InfSeq() n = 0 for e in infseq: print(e) n += 1 if n > 10: break In the code example, we ...
with open('example.txt', 'r') as file: for line in file: print(line.strip())5....
python # 创建一个元组 tuple_example = ('a', 'b', 'c') tuple_iterator = iter(tuple_example) # 遍历元组 for item in tuple_iterator: print(item) # 创建一个字典 dict_example = {'x': 1, 'y': 2, 'z': 3} dict_iterator = iter(dict_example.keys()) # 或使用dict_example.values...
// set-example.jsconst iterable = new Set([1, 1, 2, 2, 1]); for (const value of iterable) { console.log(value);}// Output:// 1// 2 String(字符串)// string-example.jsconst iterable = 'javascript'; for (const value of iterable) { console.log(value);} // Output:// "...
For example, the famous Fibonacci sequence (Fibonacci), except for the first and second Numbers, any number can be added by the first two Numbers: 1, 1, 2, 3, 5, 8, 13, 21, 34, ... 斐波拉契数列用列表生成式写不出来,但是,用函数把它打印出来却很容易: ...
Let’s consider a simple example to understand how to use theIteratortype. Suppose we want to create an iterator that returns the squares of numbers from 1 to a given limit. We can create a classSquareIteratorthat implements the required methods: ...
The __next__() method also allows you to do operations, and must return the next item in the sequence.ExampleGet your own Python Server Create an iterator that returns numbers, starting with 1, and each sequence will increase by one (returning 1,2,3,4,5 etc.): class MyNumbers: def...
packageiterator.example;publicclassClient {/***@paramargs*/publicstaticvoidmain(String[] args) { List<String> list=newArrayList<String>(); list.add("java"); list.add("c++"); list.add("python"); list.add("Object-c");while(!list.isDone()){ ...
at com.example.andya.demo.DemoApplication.main(DemoApplication.java:30) Process finished with exit code 1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 上述异常示例中,我们可以看到在Iterator遍历Collection集合的过程中,通过删除集合元素修改了集合,程序运行时引发异常,而Iterator迭代器采用了快速...
Let’s see an example: colors=['Black','Purple','Green']forcolorincolors:print(color) Output: BlackPurpleGreen Iterator in Python¶ An iterator is an object which must implement the iterator protocol consisting of the two methods__iter__()and__next__()(seeIterator Types). ...