2. node.js 模块管理机制

1.规范与实现

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2.模块分类

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3.模块流程

简单例子：

student.jsfunction add(student){    console.log('Add Student : ' + student);}exports.add = add;

teacher.jsfunction add(teacher){    console.log('Add Teacher : ' + teacher);}exports.add = add;

klass.jsvar student = require('./student');var teacher = require('./teacher');function add(teacharName,students){    teacher.add(teacharName);    students.forEach(function(item,index){       student.add(item);    });}exports.add = add;//module.exports = add;

index.jsvar klass = require('./klass');klass.add('scott',['白富美','高富帅']);