深拷贝留着吧，省的在写了。

export function objDeepCopy(source) {
if (typeof source === 'object') {
var sourceCopy = source instanceof Array ? [] : {}
for (var item in source) {
if (!source[item]) {
sourceCopy[item] = source[item]
} else {
sourceCopy[item] = typeof source[item] === 'object' ? objDeepCopy(source[item]) : source[item]
}
}
return sourceCopy
}
return source
}