找到C:/WINDOWS/system32/drivers/etc里的hosts，用记事本打开(win7下请使用管理员权限运行)，在最后面输入以下
203.208.46.29 youtube.com
203.208.46.29 www.youtube.com
203.208.46.29 gdata.youtube.com
203.208.46.29 m.youtube.com
203.208.46.29 help.youtube.com
74.125.71.116 upload.youtube.com
203.208.46.29 accounts.youtube.com
203.208.46.29 insight.youtube.com
203.208.46.29 apiblog.youtube.com
203.208.46.29 clients1.youtube.com
203.208.46.29 s.youtube.com
203.208.46.29 s2.youtube.com
203.208.46.29 s.ytimg.com
203.208.46.29 i1.ytimg.com
203.208.46.29 i2.ytimg.com
203.208.46.29 i3.ytimg.com
203.208.46.29 i4.ytimg.com
203.208.46.29 o-o.preferred.sjc07s15.v1.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v2.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v3.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v4.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v5.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v6.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v7.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v8.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v9.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v10.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v11.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v12.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v13.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v14.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v15.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v16.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v17.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v18.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v19.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v20.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v21.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v22.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v23.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v24.lscache1.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v1.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v2.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v3.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v4.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v5.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v6.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v7.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v8.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v9.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v10.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v11.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v12.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v13.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v14.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v15.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v16.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v17.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v18.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v19.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v20.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v21.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v22.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v23.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v24.lscache2.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v1.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v2.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v3.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v4.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v5.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v6.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v7.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v8.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v9.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v10.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v11.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v12.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v13.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v14.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v15.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v16.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v17.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v18.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v19.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v20.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v21.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v22.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v23.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v24.lscache3.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v1.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v2.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v3.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v4.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v5.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v6.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v7.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v8.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v9.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v10.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v11.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v12.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v13.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v14.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v15.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v16.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v17.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v18.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v19.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v20.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v21.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v22.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v23.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v24.lscache4.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v1.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v2.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v3.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v4.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v5.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v6.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v7.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v8.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v9.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v10.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v11.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v12.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v13.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v14.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v15.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v16.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v17.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v18.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v19.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v20.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v21.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v22.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v23.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v24.lscache5.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v1.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v2.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v3.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v4.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v5.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v6.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v7.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v8.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v9.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v10.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v11.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v12.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v13.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v14.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v15.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v16.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v17.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v18.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v19.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v20.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v21.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v22.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v23.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v24.lscache6.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v1.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v2.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v3.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v4.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v5.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v6.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v7.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v8.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v9.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v10.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v11.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v12.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v13.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v14.lscache7.c.youtube.com
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203.208.46.29 o-o.preferred.sjc07s15.v16.lscache7.c.youtube.com
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203.208.46.29 o-o.preferred.sjc07s15.v18.lscache7.c.youtube.com
203.208.46.29 o-o.preferred.sjc07s15.v19.lscache7.c.youtube.com
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203.208.46.29 o-o.preferred.sjc07s15.v1.lscache8.c.youtube.com
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203.208.46.29 o-o.preferred.sjc07s15.v11.lscache8.c.youtube.com
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203.208.46.29 r1.pek01s01.c.youtube.com
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203.208.46.29 r3.pek01s01.c.youtube.com
203.208.46.29 r4.pek01s01.c.youtube.com
203.208.46.29 r5.pek01s01.c.youtube.com
203.208.46.29 r6.pek01s01.c.youtube.com
203.208.46.29 r7.pek01s01.c.youtube.com
203.208.46.29 r8.pek01s01.c.youtube.com
203.208.46.29 r9.pek01s01.c.youtube.com
203.208.46.29 r10.pek01s01.c.youtube.com
203.208.46.29 r11.pek01s01.c.youtube.com
203.208.46.29 r12.pek01s01.c.youtube.com
203.208.46.29 r13.pek01s01.c.youtube.com
203.208.46.29 r14.pek01s01.c.youtube.com
203.208.46.29 r15.pek01s01.c.youtube.com
203.208.46.29 r16.pek01s01.c.youtube.com
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203.208.46.29 r18.pek01s01.c.youtube.com
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203.208.46.29 r21.pek01s01.c.youtube.com
203.208.46.29 r22.pek01s01.c.youtube.com
203.208.46.29 r23.pek01s01.c.youtube.com
203.208.46.29 r24.pek01s01.c.youtube.com
203.208.46.29 tc.v1.cache1.c.youtube.com
203.208.46.29 tc.v2.cache1.c.youtube.com
203.208.46.29 tc.v3.cache1.c.youtube.com
203.208.46.29 tc.v4.cache1.c.youtube.com
203.208.46.29 tc.v5.cache1.c.youtube.com
203.208.46.29 tc.v6.cache1.c.youtube.com
203.208.46.29 tc.v7.cache1.c.youtube.com
203.208.46.29 tc.v8.cache1.c.youtube.com
203.208.46.29 tc.v9.cache1.c.youtube.com
203.208.46.29 tc.v10.cache1.c.youtube.com
203.208.46.29 tc.v11.cache1.c.youtube.com
203.208.46.29 tc.v12.cache1.c.youtube.com
203.208.46.29 tc.v13.cache1.c.youtube.com
203.208.46.29 tc.v14.cache1.c.youtube.com
203.208.46.29 tc.v15.cache1.c.youtube.com
203.208.46.29 tc.v16.cache1.c.youtube.com
203.208.46.29 tc.v17.cache1.c.youtube.com
203.208.46.29 tc.v18.cache1.c.youtube.com
203.208.46.29 tc.v19.cache1.c.youtube.com
203.208.46.29 tc.v20.cache1.c.youtube.com
203.208.46.29 tc.v21.cache1.c.youtube.com
203.208.46.29 tc.v22.cache1.c.youtube.com
203.208.46.29 tc.v23.cache1.c.youtube.com
203.208.46.29 tc.v24.cache1.c.youtube.com
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