node中的module中的parent

Module {
id: '.',
exports: {},
parent: null,
filename: 'D:\\000000000000linux\\十五 node\\02-2016-03-03\\视频2\\1.js',
loaded: false,
children: [],
paths:
[ 'D:\\000000000000linux\\十五 node\\02-2016-03-03\\视频2\\node_modules',
'D:\\000000000000linux\\十五 node\\02-2016-03-03\\node_modules',
'D:\\000000000000linux\\十五 node\\node_modules',
'D:\\000000000000linux\\node_modules',
'D:\\node_modules' ] }
Module {
id: 'D:\\000000000000linux\\十五 node\\02-2016-03-03\\视频2\\module\\cal.js',
exports: {},
parent:
Module {
id: '.',
exports: {},
parent: null,
filename: 'D:\\000000000000linux\\十五 node\\02-2016-03-03\\视频2\\1.js',
loaded: false,
children: [ [Circular] ],
paths:
[ 'D:\\000000000000linux\\十五 node\\02-2016-03-03\\视频2\\node_modules',
'D:\\000000000000linux\\十五 node\\02-2016-03-03\\node_modules',
'D:\\000000000000linux\\十五 node\\node_modules',
'D:\\000000000000linux\\node_modules',
'D:\\node_modules' ] },
filename: 'D:\\000000000000linux\\十五 node\\02-2016-03-03\\视频2\\module\\cal.js',
loaded: false,
children: [],
paths:
[ 'D:\\000000000000linux\\十五 node\\02-2016-03-03\\视频2\\module\\node_modules',
'D:\\000000000000linux\\十五 node\\02-2016-03-03\\视频2\\node_modules',
'D:\\000000000000linux\\十五 node\\02-2016-03-03\\node_modules',
'D:\\000000000000linux\\十五 node\\node_modules',
'D:\\000000000000linux\\node_modules',
'D:\\node_modules' ] }