copy method
从复制当前节点及其后代 复制后的节点没有parent
Implementation
T copy(T Function(T?, T) build, [int deep = 0]) {
return _innerCopy(build, null, deep);
}
从复制当前节点及其后代 复制后的节点没有parent
T copy(T Function(T?, T) build, [int deep = 0]) {
return _innerCopy(build, null, deep);
}