michaelfeng

class Pipe(object):
    def __init__(self, func):
        self.func = func
 
    def __ror__(self, other):
        def generator():
            for obj in other:
                if obj is not None:
                    yield self.func(obj)
        return generator()

michaelfeng

// T 指代任何你希望存储的类型
Queue<T> queue = new LinkedList<>();
Set<T> set = new HashSet<>();

set.add(start);
queue.offer(start);
while (!queue.isEmpty()) {
    T head = queue.poll();
    for (T neighbor : head.neighbors) {
        if (!set.contains(neighbor)) {

michaelfeng

#!/usr/bin/env bash
# Reset routing table on OSX

# display current routing table
echo "********** BEFORE ****************************************"
netstat -r
echo "**********************************************************"

for i in {0..4}; do
  sudo route -n flush # several times