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\n

\u5728Java<\/a>\u4e2d\u7684For\u5faa\u73af\u4e2d\u53ef\u4ee5\u76f4\u63a5\u4fee\u6539\u5bf9\u8c61\u7684\u5c5e\u6027<\/p> \n 

\r\nimport java<\/a>.util.ArrayList;\r\nimport java<\/a>.util.List;\r\nimport java.util.regex.*;\r\n\r\npublic class main {\r\n    static class Student {\r\n        String name;\r\n        int id;\r\n        public Student(String name, int id) {\r\n            this.name = name;\r\n            this.id = id;\r\n        }\r\n        public void setName(String name) {\r\n            this.name = name;\r\n        }\r\n        @Override\r\n        public String toString() {\r\n            return "Student [name=" + name + ", id=" + id + "]";\r\n        }\r\n    }\r\n\r\n    public static void main(String[] args) {\r\n        List\n  \n    mStudents = new ArrayList\n   \n    (); mStudents.add(new Student("Tony", 1)); mStudents.add(new Student("Lili", 2)); System.out.println("BEFORE: " + mStudents); for (Student student : mStudents) { if (student.id == 1) { student.setName("zhangsan"); } } System.out.println("AFTER: " + mStudents); } }\n   <\/student>\n  <\/student><\/pre> \n 
\u8fd0\u884c\u7ed3\u679c\uff1a<\/p> \n 
\r\nBEFORE: [Student [name=Tony, id=1], Student [name=Lili, id=2]]\r\nAFTER: [Student [name=zhangsan, id=1], Student [name=Lili, id=2]]<\/pre> \n 
\u800c\u5728C++<\/a>\u4e2d\u76f4\u63a5\u4fee\u6539\u4e0d\u4f1a\u6539\u53d8List\u4e2d\u7684\u5bf9\u8c61\u5c5e\u6027\u3002\u7ed3\u679c\u5982\u4e0b\uff1a<\/p> \n 
\r\n        for (Student student : mStudents) {\r\n            if (student.id == 1) {\r\n                student.setName("zhangsan");\r\n            }\r\n        }<\/pre> \n 
\u9700\u8981\u52a0\u4e0a\u53d6\u5730\u5740\u7b26\u624d\u80fd\u8fbe\u5230java\u4e2d\u7684\u6548\u679c\uff1a<\/p> \n 
\r\n        for (Student &student : mStudents) {\r\n            if (student.id == 1) {\r\n                student.setName("zhangsan");\r\n            }\r\n        }<\/pre> \n 
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