以下调用宏定义的方法哪个是正确的？
A.constuserUrl=require(‘../../config.js’).userUrl
B.userUrl=require(‘../../config.js’).userUrl
C.constuserUrl=(‘../../config.js’).userUrl
D.constuserUrl=require(‘../../config.js’)
正确答案：constuserUrl=require(‘../../config.js’).userUrl