现象是从40多ms一倍倍的涨到3000ms左右，然后又一下子降回40多
好像是.net的垃圾回收？？但是为什么这么频繁？？？

Reply from 211.157.113.136: bytes=32 time=64ms TTL=115
Reply from 211.157.113.136: bytes=32 time=60ms TTL=115
Reply from 211.157.113.136: bytes=32 time=47ms TTL=115
Reply from 211.157.113.136: bytes=32 time=57ms TTL=115
Reply from 211.157.113.136: bytes=32 time=56ms TTL=115
Reply from 211.157.113.136: bytes=32 time=72ms TTL=115
Reply from 211.157.113.136: bytes=32 time=495ms TTL=115
Reply from 211.157.113.136: bytes=32 time=930ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1471ms TTL=115
Reply from 211.157.113.136: bytes=32 time=2219ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1500ms TTL=115
Reply from 211.157.113.136: bytes=32 time=56ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=74ms TTL=115
Reply from 211.157.113.136: bytes=32 time=46ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=51ms TTL=115
Reply from 211.157.113.136: bytes=32 time=287ms TTL=115
Reply from 211.157.113.136: bytes=32 time=830ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1855ms TTL=115
Reply from 211.157.113.136: bytes=32 time=2783ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1196ms TTL=115
Reply from 211.157.113.136: bytes=32 time=50ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=46ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=56ms TTL=115
Reply from 211.157.113.136: bytes=32 time=90ms TTL=115
Reply from 211.157.113.136: bytes=32 time=104ms TTL=115
Reply from 211.157.113.136: bytes=32 time=256ms TTL=115
Reply from 211.157.113.136: bytes=32 time=814ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=45ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=80ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=61ms TTL=115
Reply from 211.157.113.136: bytes=32 time=66ms TTL=115
Reply from 211.157.113.136: bytes=32 time=72ms TTL=115
Reply from 211.157.113.136: bytes=32 time=106ms TTL=115
Reply from 211.157.113.136: bytes=32 time=125ms TTL=115
Reply from 211.157.113.136: bytes=32 time=55ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=56ms TTL=115
Reply from 211.157.113.136: bytes=32 time=79ms TTL=115
Reply from 211.157.113.136: bytes=32 time=47ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=45ms TTL=115
Reply from 211.157.113.136: bytes=32 time=56ms TTL=115
Reply from 211.157.113.136: bytes=32 time=82ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=80ms TTL=115
Reply from 211.157.113.136: bytes=32 time=82ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=54ms TTL=115
Reply from 211.157.113.136: bytes=32 time=56ms TTL=115
Reply from 211.157.113.136: bytes=32 time=55ms TTL=115
Reply from 211.157.113.136: bytes=32 time=50ms TTL=115
Reply from 211.157.113.136: bytes=32 time=51ms TTL=115
Reply from 211.157.113.136: bytes=32 time=51ms TTL=115
Reply from 211.157.113.136: bytes=32 time=49ms TTL=115
Reply from 211.157.113.136: bytes=32 time=48ms TTL=115
Reply from 211.157.113.136: bytes=32 time=57ms TTL=115
Reply from 211.157.113.136: bytes=32 time=407ms TTL=115
Reply from 211.157.113.136: bytes=32 time=61ms TTL=115
Reply from 211.157.113.136: bytes=32 time=461ms TTL=115
Reply from 211.157.113.136: bytes=32 time=462ms TTL=115
Reply from 211.157.113.136: bytes=32 time=60ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=46ms TTL=115
Reply from 211.157.113.136: bytes=32 time=54ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=1710ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1781ms TTL=115
Reply from 211.157.113.136: bytes=32 time=309ms TTL=115
Reply from 211.157.113.136: bytes=32 time=63ms TTL=115
Reply from 211.157.113.136: bytes=32 time=47ms TTL=115
Reply from 211.157.113.136: bytes=32 time=49ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=49ms TTL=115
Reply from 211.157.113.136: bytes=32 time=49ms TTL=115
Reply from 211.157.113.136: bytes=32 time=79ms TTL=115
Reply from 211.157.113.136: bytes=32 time=199ms TTL=115
Reply from 211.157.113.136: bytes=32 time=743ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1252ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1876ms TTL=115
Reply from 211.157.113.136: bytes=32 time=2608ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=49ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=83ms TTL=115
Reply from 211.157.113.136: bytes=32 time=542ms TTL=115
Reply from 211.157.113.136: bytes=32 time=994ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1509ms TTL=115
Reply from 211.157.113.136: bytes=32 time=2157ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1139ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=65ms TTL=115
Reply from 211.157.113.136: bytes=32 time=122ms TTL=115
Reply from 211.157.113.136: bytes=32 time=338ms TTL=115
Reply from 211.157.113.136: bytes=32 time=545ms TTL=115
Reply from 211.157.113.136: bytes=32 time=899ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1234ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=50ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=55ms TTL=115
Reply from 211.157.113.136: bytes=32 time=67ms TTL=115
Reply from 211.157.113.136: bytes=32 time=105ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=47ms TTL=115
Reply from 211.157.113.136: bytes=32 time=138ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=45ms TTL=115
Reply from 211.157.113.136: bytes=32 time=57ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=49ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=336ms TTL=115
Reply from 211.157.113.136: bytes=32 time=808ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1109ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1141ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1154ms TTL=115
Reply from 211.157.113.136: bytes=32 time=563ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=57ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=51ms TTL=115
Reply from 211.157.113.136: bytes=32 time=308ms TTL=115
Reply from 211.157.113.136: bytes=32 time=861ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=333ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=48ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=47ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=60ms TTL=115
Reply from 211.157.113.136: bytes=32 time=520ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1051ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1573ms TTL=115
Reply from 211.157.113.136: bytes=32 time=2337ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1914ms TTL=115
Reply from 211.157.113.136: bytes=32 time=47ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=94ms TTL=115
Reply from 211.157.113.136: bytes=32 time=92ms TTL=115
Reply from 211.157.113.136: bytes=32 time=480ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1485ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1591ms TTL=115
Reply from 211.157.113.136: bytes=32 time=813ms TTL=115
Reply from 211.157.113.136: bytes=32 time=346ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=46ms TTL=115
Reply from 211.157.113.136: bytes=32 time=54ms TTL=115
Reply from 211.157.113.136: bytes=32 time=121ms TTL=115
Reply from 211.157.113.136: bytes=32 time=304ms TTL=115
Reply from 211.157.113.136: bytes=32 time=366ms TTL=115
Reply from 211.157.113.136: bytes=32 time=367ms TTL=115
Reply from 211.157.113.136: bytes=32 time=421ms TTL=115
Reply from 211.157.113.136: bytes=32 time=85ms TTL=115
Reply from 211.157.113.136: bytes=32 time=60ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=57ms TTL=115
Reply from 211.157.113.136: bytes=32 time=58ms TTL=115
Reply from 211.157.113.136: bytes=32 time=52ms TTL=115
Reply from 211.157.113.136: bytes=32 time=73ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=42ms TTL=115
Reply from 211.157.113.136: bytes=32 time=55ms TTL=115
Reply from 211.157.113.136: bytes=32 time=98ms TTL=115
Reply from 211.157.113.136: bytes=32 time=108ms TTL=115
Reply from 211.157.113.136: bytes=32 time=117ms TTL=115
Reply from 211.157.113.136: bytes=32 time=110ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=51ms TTL=115
Reply from 211.157.113.136: bytes=32 time=84ms TTL=115
Reply from 211.157.113.136: bytes=32 time=50ms TTL=115
Reply from 211.157.113.136: bytes=32 time=63ms TTL=115
Reply from 211.157.113.136: bytes=32 time=52ms TTL=115
Reply from 211.157.113.136: bytes=32 time=190ms TTL=115
Reply from 211.157.113.136: bytes=32 time=354ms TTL=115
Reply from 211.157.113.136: bytes=32 time=385ms TTL=115
Reply from 211.157.113.136: bytes=32 time=387ms TTL=115
Reply from 211.157.113.136: bytes=32 time=400ms TTL=115
Reply from 211.157.113.136: bytes=32 time=412ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=52ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=64ms TTL=115
Request timed out.
Reply from 211.157.113.136: bytes=32 time=953ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1463ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1812ms TTL=115
Reply from 211.157.113.136: bytes=32 time=1162ms TTL=115
Reply from 211.157.113.136: bytes=32 time=44ms TTL=115
Reply from 211.157.113.136: bytes=32 time=43ms TTL=115
Reply from 211.157.113.136: bytes=32 time=46ms TTL=115

Ping statistics for 211.157.113.136:
Packets: Sent = 239, Received = 226, Lost = 13 (5% loss),
Approximate round trip times in milli-seconds:
Minimum = 42ms, Maximum = 2783ms, Average = 320ms
Control-C
^C