1#!/usr/bin/env python2#-*- coding: utf-8 -*-3if__name__=='__main__':4list = ['html','js','css','python']56#方法17print'遍历列表方法1:'8foriinlist:9print("序号:%s 值:%s"% (list.index(i) + 1, i))1011print'\n遍历列表方法2:'12#方法213foriinrange(len(list)):1...
三、访问元素 如果要提取列表中的元素,使用索引是一种方法,将索引值写在变量名后的方括号内,Python的索引是从0开始的。 1 2 3 4 print(info[1]) # Jack print(info[5]) # IndexError: list index out of range 列表的元素可以是任意类型,因此列表可以嵌套列表。 1 2 3 4 5 names=['zhangsan','lis...
publicstaticvoidmain(String[]args){List<Student>list=Lists.newArrayList();list.add(newStudent("测试","男",18));list.add(newStudent("开发","男",20));list.add(newStudent("运维","女",19));list.add(newStudent("DBA","女",22));list.add(newStudent("运营","男",24));list.add(newSt...
通过keySet或values来实现遍历,性能略低于第一种方式 // 遍历map中的键 for (Integer key : map.keySet()) { System.out.println(“...key = ” + key); } // 遍历map中的值 for (Integer value : map.values()) { System.out.println(“key = ” + value...使用Iterator遍历 Iterator> it =...
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Supports classification, segmentation, detection out of the box. Was used to win a number of Deep Learning competitions at Kaggle, Topcoder and those that were a part of the CVPR workshops. pytessarct - Python-tesseract is an optical character recognition (OCR) tool for python. That is, it...
// 输出目标List中的元素System.out.println("目标List中的元素是:");for(Stringitem:targetList){System.out.println(item);} 1. 2. 3. 4. 5. 解释: 通过for循环遍历targetList中的所有元素,并逐个打印出来,确保复制成功。 三、完整代码 以下是完整的示例代码,你可以直接添加到你的Java IDE中运行: ...
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