qq登录服务器地址
【菜科解读】
Q登录服务器的原理
如今很多朋友聊天都用QQ，但是很多单位为了让员工更加高效地工作，往往都对网络做了一些限制，导致不能正常登陆QQ
qq.com
183.60.48.171 80
58.251.62.15 80
121.14.102.1558.60.14.192
183.60.48.174
183.60.48.175
111.30.131.159
61.141.194.227
218.17.209.42
218.18.95.153
218.18.95.171
218.17.209.23
218.18.95.153
61.141.194.227
218.18.95.171
119.147.15.13
119.147.15.17
tencent.com
116.212.117.220
tcpconn.tencent.com
123.151.40.155
123.151.40.16
123.151.40.17
123.151.40.68
123.151.40.86
123.151.40.95
123.151.40.105
123.151.40.117
123.151.40.118
123.151.40.119
123.151.40.138
123.151.40.140
123.151.40.142
123.151.40.147
123.151.40.148
123.151.40.153
tcpconn2.tencent.com
219.133.60.173
112.90.84.87
112.90.84.114
112.90.84.111
112.90.84.112
112.90.84.106
112.90.84.18
112.90.84.77
112.90.84.66
112.90.84.117
112.90.84.57
112.90.84.13
112.90.84.19
112.90.84.48
112.90.84.14
112.90.84.61
112.90.84.138
tcpconn3.tencent.com
125.39.205.27
125.39.205.28
125.39.205.29
125.39.205.30
125.39.205.31
125.39.205.32
125.39.205.34
125.39.205.39
125.39.205.42
125.39.205.44
125.39.205.46
125.39.205.49
125.39.205.50
125.39.205.51
125.39.205.25
125.39.205.26
tcpconn4.tencent.com
183.60.48.246
183.60.49.190
183.60.48.245
183.60.50.24
183.60.50.26
183.60.48.175
183.60.50.25
183.60.49.182
183.60.48.250
183.60.48.171
183.60.50.23
183.60.49.180
183.60.48.248
183.60.48.180
183.60.48.247
183.60.49.188
tcpconn5.tencent.com
112.95.240.22
112.95.240.47
112.95.240.61
112.95.240.26
112.95.240.25
112.95.240.38
112.95.240.43
112.95.240.65
112.95.240.24
112.95.240.49
112.95.240.44
112.95.240.18
112.95.240.23
112.95.240.48
112.95.240.69
112.95.240.71
tcpconn6.tencent.com
119.147.45.49
119.147.45.58
119.147.45.54
119.147.45.41
119.147.32.233
119.147.45.55
119.147.32.220
119.147.32.229
119.147.32.226
119.147.32.219
119.147.32.235
119.147.32.203
119.147.32.218
119.147.32.237
119.147.32.230
119.147.45.50
udp
219.133.49.171
sz.tencent.com
183.60.16.35
183.60.16.93
183.60.16.81
183.60.16.80
183.60.16.169
183.60.16.171
183.60.16.124
183.60.16.123
183.60.16.173
183.60.16.117
183.60.16.114
183.60.16.165
183.60.16.15
183.60.16.57
183.60.16.27
183.60.17.15
sz2.tencent.com
183.60.48.95
183.60.48.83
183.60.48.96
183.60.48.90
183.60.48.86
183.60.48.84
183.60.49.94
183.60.48.68
183.60.48.69
183.60.48.60
183.60.48.57
183.60.48.53
183.60.48.22
183.60.49.68
183.60.49.33
183.60.48.102
sz3.tencent.com
112.95.240.72
112.95.240.86
112.95.240.105
112.95.240.104
112.95.240.121
112.95.240.200
112.95.240.203
112.95.242.113
112.95.240.234
112.95.241.16
112.95.240.253
112.95.240.240
112.95.240.241
112.95.240.228
112.95.240.74
112.95.240.62
sz4.tencent.com
183.60.48.229
183.60.49.250
183.60.49.246
183.60.48.223
183.60.49.185
183.60.49.245
183.60.48.214
183.60.49.238
183.60.48.213
183.60.48.218
183.60.49.233
183.60.48.181
183.60.50.49
183.60.49.19
183.60.49.18
183.60.50.34
sz5.tencent.com
119.147.32.204
119.147.32.246
119.147.45.11
119.147.45.76
119.147.45.75
119.147.45.152
119.147.45.158
119.147.45.160
119.147.45.159
119.147.45.193
119.147.45.191
119.147.45.176
119.147.45.148
119.147.45.153
119.147.45.187
119.147.45.192
sz6.tencent.com
112.90.86.221
112.90.86.228
112.90.86.23
112.90.86.233
112.90.86.247
112.90.86.248
112.90.86.182
112.90.86.187
112.90.86.191
112.90.86.196
112.90.86.197
112.90.86.202
112.90.86.206
112.90.86.209
112.90.86.215
112.90.86.218
sz7.tencent.com
119.147.45.157
119.147.45.162
119.147.45.164
119.147.45.179
119.147.45.124
119.147.45.29
119.147.45.21
119.147.45.96
119.147.45.18
119.147.45.90
119.147.45.172
119.147.45.118
119.147.45.68
119.147.45.78
119.147.45.151
119.147.45.154
sz8.tencent.com
123.151.40.115
123.151.40.116
123.151.40.121
123.151.40.122
123.151.40.124
123.151.40.139
123.151.40.143
123.151.40.15
123.151.40.77
123.151.40.78
123.151.40.88
123.151.40.94
123.151.40.99
123.151.40.100
123.151.40.101
123.151.40.104
sz9.tencent.com
125.39.205.115
125.39.205.117
125.39.205.122
125.39.205.124
125.39.205.126
125.39.205.33
125.39.205.63
125.39.205.66
125.39.205.77
125.39.205.83
125.39.205.85
125.39.205.91
111.161.52.10
125.39.205.101
125.39.205.111
125.39.205.112
qq.com
119.147.15.13
119.147.15.17
tencent.com
116.212.117.220
tcpconn.tencent.com
123.151.40.155
123.151.40.16
123.151.40.17
123.151.40.68
123.151.40.86
123.151.40.95
123.151.40.105
123.151.40.117
123.151.40.118
123.151.40.119
123.151.40.138
123.151.40.140
123.151.40.142
123.151.40.147
123.151.40.148
123.151.40.153
tcpconn2.tencent.com
219.133.60.173
112.90.84.87
112.90.84.114
112.90.84.111
112.90.84.112
112.90.84.106
112.90.84.18
112.90.84.77
112.90.84.66
112.90.84.117
112.90.84.57
112.90.84.13
112.90.84.19
112.90.84.48
112.90.84.14
112.90.84.61
112.90.84.138
tcpconn3.tencent.com
125.39.205.27
125.39.205.28
125.39.205.29
125.39.205.30
125.39.205.31
125.39.205.32
125.39.205.34
125.39.205.39
125.39.205.42
125.39.205.44
125.39.205.46
125.39.205.49
125.39.205.50
125.39.205.51
125.39.205.25
125.39.205.26
tcpconn4.tencent.com
183.60.48.246
183.60.49.190
183.60.48.245
183.60.50.24
183.60.50.26
183.60.48.175
183.60.50.25
183.60.49.182
183.60.48.250
183.60.48.171
183.60.50.23
183.60.49.180
183.60.48.248
183.60.48.180
183.60.48.247
183.60.49.188
tcpconn5.tencent.com
112.95.240.22
112.95.240.47
112.95.240.61
112.95.240.26
112.95.240.25
112.95.240.38
112.95.240.43
112.95.240.65
112.95.240.24
112.95.240.49
112.95.240.44
112.95.240.18
112.95.240.23
112.95.240.48
112.95.240.69
112.95.240.71
tcpconn6.tencent.com
119.147.45.49
119.147.45.58
119.147.45.54
119.147.45.41
119.147.32.233
119.147.45.55
119.147.32.220
119.147.32.229
119.147.32.226
119.147.32.219
119.147.32.235
119.147.32.203
119.147.32.218
119.147.32.237
119.147.32.230
119.147.45.50
udp
219.133.49.171
sz.tencent.com
183.60.16.35
183.60.16.93
183.60.16.81
183.60.16.80
183.60.16.169
183.60.16.171
183.60.16.124
183.60.16.123
183.60.16.173
183.60.16.117
183.60.16.114
183.60.16.165
183.60.16.15
183.60.16.57
183.60.16.27
183.60.17.15
sz2.tencent.com
183.60.48.95
183.60.48.83
183.60.48.96
183.60.48.90
183.60.48.86
183.60.48.84
183.60.49.94
183.60.48.68
183.60.48.69
183.60.48.60
183.60.48.57
183.60.48.53
183.60.48.22
183.60.49.68
183.60.49.33
183.60.48.102
sz3.tencent.com
112.95.240.72
112.95.240.86
112.95.240.105
112.95.240.104
112.95.240.121
112.95.240.200
112.95.240.203
112.95.242.113
112.95.240.234
112.95.241.16
112.95.240.253
112.95.240.240
112.95.240.241
112.95.240.228
112.95.240.74
112.95.240.62
sz4.tencent.com
183.60.48.229
183.60.49.250
183.60.49.246
183.60.48.223
183.60.49.185
183.60.49.245
183.60.48.214
183.60.49.238
183.60.48.213
183.60.48.218
183.60.49.233
183.60.48.181
183.60.50.49
183.60.49.19
183.60.49.18
183.60.50.34
sz5.tencent.com
119.147.32.204
119.147.32.246
119.147.45.11
119.147.45.76
119.147.45.75
119.147.45.152
119.147.45.158
119.147.45.160
119.147.45.159
119.147.45.193
119.147.45.191
119.147.45.176
119.147.45.148
119.147.45.153
119.147.45.187
119.147.45.192
sz6.tencent.com
112.90.86.221
112.90.86.228
112.90.86.23
112.90.86.233
112.90.86.247
112.90.86.248
112.90.86.182
112.90.86.187
112.90.86.191
112.90.86.196
112.90.86.197
112.90.86.202
112.90.86.206
112.90.86.209
112.90.86.215
112.90.86.218
sz7.tencent.com
119.147.45.157
119.147.45.162
119.147.45.164
119.147.45.179
119.147.45.124
119.147.45.29
119.147.45.21
119.147.45.96
119.147.45.18
119.147.45.90
119.147.45.172
119.147.45.118
119.147.45.68
119.147.45.78
119.147.45.151
119.147.45.154
sz8.tencent.com
123.151.40.115
123.151.40.116
123.151.40.121
123.151.40.122
123.151.40.124
123.151.40.139
123.151.40.143
123.151.40.15
123.151.40.77
123.151.40.78
123.151.40.88
123.151.40.94
123.151.40.99
123.151.40.100
123.151.40.101
123.151.40.104
sz9.tencent.com
125.39.205.115
125.39.205.117
125.39.205.122
125.39.205.124
125.39.205.126
125.39.205.33
125.39.205.63
125.39.205.66
125.39.205.77
125.39.205.83
125.39.205.85
125.39.205.91
111.161.52.10
125.39.205.101
125.39.205.111
125.39.205.112
121.14.74.138
121.14.74.245
121.14.74.246
121.14.74.247
121.14.75.50
121.14.75.51
121.14.75.57
121.14.75.58
121.14.75.59
121.14.75.60
121.14.75.61
121.14.75.62
121.14.75.63
121.14.75.64
121.14.77.105
121.14.77.106
121.14.77.107
219.133.38.135
219.133.38.136
219.133.38.230
219.133.40.130
219.133.40.138
219.133.40.179
219.133.40.189
219.133.40.37
219.133.48.101
219.133.48.102
219.133.48.103
219.133.48.104
219.133.48.105
219.133.48.106
219.133.48.107
219.133.48.108
219.133.48.109
219.133.48.52
219.133.48.53
219.133.48.56
219.133.48.57
219.133.48.61
219.133.48.62
219.133.48.70
219.133.48.72
219.133.48.74
219.133.48.75
219.133.48.87
219.133.48.88
219.133.48.90
219.133.48.91
219.133.48.96
219.133.48.97
219.133.48.98
219.133.48.99
219.133.49.124
219.133.49.125
219.133.49.163
219.133.49.163
219.133.49.164
219.133.49.167
219.133.49.168
219.133.49.169
219.133.49.169
219.133.49.170
219.133.49.170
219.133.49.171
219.133.49.172
219.133.49.173
219.133.49.173
219.133.49.195
219.133.49.196
219.133.49.198
219.133.49.199
219.133.49.200
219.133.49.206
219.133.49.211
219.133.49.215
219.133.49.216
219.133.51.93
219.133.60.148
219.133.60.149
219.133.60.15
219.133.60.153
219.133.60.16
219.133.60.172
219.133.60.173
219.133.60.174
219.133.60.18
219.133.60.19
219.133.60.20
219.133.60.206
219.133.60.21
219.133.60.22
219.133.60.23
219.133.60.24
219.133.60.246
219.133.60.25
219.133.60.250
219.133.60.26
219.133.60.27
219.133.60.30
219.133.60.32
219.133.60.33
219.133.60.34
219.133.60.35
219.133.60.36
219.133.60.37
219.133.60.38
219.133.60.39
219.133.60.71
219.133.60.72
"219.133.60.74,"
219.133.60.75
219.133.62.10
219.133.62.179
219.133.62.2
219.133.62.3
219.133.62.4
219.133.62.8
219.133.62.9
219.133.63.15
219.133.63.53
219.133.63.54
58.251.60.44
58.251.60.46
58.251.60.51
58.251.60.53
58.251.62.14
58.251.62.15
58.251.62.17
58.251.62.25
58.251.62.26
58.251.62.31
58.251.62.35
58.251.62.37
58.251.62.38
58.251.62.40
58.251.62.56
58.251.63.56
58.251.63.57
58.251.63.58
58.251.63.60
58.251.63.61
58.251.63.62
58.251.63.64
58.251.63.65
58.251.63.66
58.251.63.68
58.251.63.69
58.251.63.71
58.251.63.72
58.251.63.74
58.251.63.75
58.251.63.76
58.251.63.78
58.251.63.79
58.60.14.101
58.60.14.102
58.60.14.103
58.60.14.104
58.60.14.106
58.60.14.107
58.60.14.107
58.60.14.108
58.60.14.109
58.60.14.110
58.60.14.111
58.60.14.113
58.60.14.114
58.60.14.114
58.60.14.115
58.60.14.180
58.60.14.180
58.60.14.191
58.60.14.191
58.60.14.192
58.60.14.193
58.60.14.194
58.60.14.195
58.60.14.199
58.60.14.199
58.60.14.201
58.60.14.202
58.60.14.32
58.60.14.33
58.60.14.33
58.60.14.34
58.60.14.34
58.60.14.35
58.60.14.37
58.60.14.37
58.60.14.38
58.60.14.39
58.60.14.40
58.60.14.41
58.60.14.42
58.60.14.43
58.60.14.44
58.60.14.45
58.60.14.45
58.60.14.46
58.60.14.46
58.60.14.47
58.60.14.48
58.60.14.49
58.60.14.50
58.60.14.51
58.60.14.52
58.60.14.53
58.60.14.96
58.60.14.97
58.60.15.104
58.60.15.31
58.60.15.31
58.60.15.33
58.60.15.34
58.60.15.34
58.60.15.35
58.60.15.35
58.60.15.36
58.60.15.38
58.60.15.39
58.60.15.41
58.60.15.41
58.60.15.96
58.60.15.97
58.60.15.98
58.60.9.66
58.61.165.205
58.61.32.39
58.61.32.40
58.61.32.59
58.61.33.120
58.61.33.121
58.61.34.20
58.61.34.20
58.61.34.21
58.61.34.24
58.61.34.24
58.61.34.25
58.61.34.26
58.61.34.51
58.61.34.51
65.54.179.192
61.144.238.156
61.144.238.150
61.144.238.146
61.144.238.145
61.144.238.140
61.144.194.200
61.144.138.146
61.141.194.227
61.141.194.224
61.141.194.223
61.141.194.203
219.133.51.92
219.133.51.160
219.133.49.7
219.133.49.10
219.133.45.15
219.133.41.28
219.133.40.96
219.133.40.73
219.133.40.244
219.133.40.216
219.133.40.175
219.133.38.5
219.133.38.39
219.133.38.36
219.133.38.193
219.133.38.136
219.133.128.16
218.18.95.236
218.18.95.227
218.18.95.221
218.18.95.209
218.18.95.189
218.18.95.188
218.18.95.181
218.18.95.171
218.18.95.166
218.18.95.165
218.18.95.163
218.18.95.160
218.18.95.153
218.18.95.140
218.17.209.42
218.17.209.23
218.17.209.21
218.17.209.20
202.96.170.166
202.96.170.164
202.96.170.163
202.104.129.254
202.104.129.253
202.104.129.253
202.104.129.252
202.104.129.251
219.133.49.8:80
219.133.49.5:443
61.144.138.146
61.141.194.203
61.144.194.200
61.144.194.223
61.144.194.227
61.144.194.224
61.144.238.140
61.144.238.145
61.144.238.146
61.144.238.150
61.144.238.156
65.54.179.192
202.96.170.163
202.96.170.164
202.96.170.165
202.96.170.166
202.104.129.251
202.104.129.252
202.104.129.253
202.104.129.254
212.133.49.13
218.17.209.20
218.17.209.21
218.17.209.22
218.17.209.23
218.17.209.42
UDP 8000
218.17.209.20
218.18.95.189
218.18.95.165
UDP 8000 61.144.238.140
218.18.95.135
218.18.95.140
218.18.95.153
218.18.95.160
218.18.95.163
218.18.95.165
218.18.95.166
218.18.95.171
218.18.95.181
218.18.95.188
218.18.95.189
218.18.95.209
218.18.95.219
218.18.95.221
218.18.95.227
UDP 8000 218.18.95.181
218.17.209.42
219.133.38.5
219.133.38.16
219.133.38.18
219.133.38.19
219.133.38.20
219.133.38.21
219.133.38.31
219.133.38.36
219.133.38.39
219.133.38.66
219.133.38.135
219.133.38.136
219.133.38.166
219.133.38.176
219.133.38.193
219.133.38.230
219.133.38.232
219.133.40.15
219.133.40.73
219.133.40.96
219.133.40.97
219.133.40.148
219.133.40.156
219.133.40.157
219.133.40.175
219.133.40.216
219.133.40.244
219.133.40.245
219.133.41.28
219.133.45.15
219.133.49.7
219.133.49.8
219.133.49.10
219.133.49.79
219.133.51.66
219.133.51.92
219.133.51.160
219.133.51.161
TCP 443 65.54.179.192
UDP 8000 219.133.38.136
218.18.95.163 TCP 433
219.133.38.5：443
218.17.209.23：443
219.133.40.244：8000
219.133.38.39：8000
218.18.95.188 8000
221.104.193.30
61.144.238.151/
61.152.93.13/
202.104.193.32
UDP Protocol (Port:8000)
--------------------------
61.144.238.145
61.144.238.146
61.144.238.150
61.144.238.156
61.141.194.203
61.141.194.200
61.141.194.223
61.141.194.224
202.96.170.163
202.96.170.164
202.96.170.166
202.104.129.251
202.104.129.252
202.104.129.253
202.104.129.254
218.17.209.21
218.18.95.160
218.18.95.165
218.18.95.209
218.18.95.221
218.18.95.227
219.133.45.15
219.133.40.216
TCP (Port: 443)
-------------
218.17.209.23
218.18.95.140
218.18.95.153
218.18.95.171
218.18.95.221
219.133.49.206
219.133.48.106
61.141.194.227
58.60.14.46
58.251.62.17
58.60.14.101
219.133.49.125
VIP Server (Port: 443)
218.17.209.42
58.60.9.58
============================
TCP 219.133.60.149:443
TCP 219.133.49.206:443
TCP 219.133.60.243:8000
TCP 219.133.63.142:443
TCP 219.133.38.46 8000
TCP:219.133.60.243:8000
UDP 219.133.49.171 8000
TCP 219.133.60.173 80
219.133.60.35:8000
udp:61.144.238.145：8000
tcp:218.17.209.23:80
二、突破端口限制的封锁封锁QQ的方法有很多，下面首先看看最常用的“封锁端口法”。
由于QQ用的是UDP协议，默认通讯端口是4000，所以只要在网关上制定过滤规则，把源端口是4000的UDP数据包过滤掉就可以实现对QQ的封杀了。
对付这种封锁，可以使用某些软件把QQ的通讯端口进行重定向，改变QQ的通讯端口，从而突破网关的限制。
由于QQ默认采用4000端口传送消息，如果4000被占用的话，那么它就会自动改用4001端口，如果4001端口被占用，就改用4002端口，以此类推。
所以，就算网关上把4000端口的数据包都过滤掉，但我们可以在启动QQ之前，先把从4000开始的若干端口都占用掉，那么QQ启动的时候，就会顺理成章的使用其后面的端口，如此就可以冲破网关限制用QQ了！要实现以上的目的，需要使用一个工具“NukeNabber”，“NukeNabber”是一款端口监视器软件，这个软件可以自定义50个端口，也就是说如果我们在NukeNabber中填入4000-4049就可以把这些端口全部占用！那样再运行QQ就会自动使用4050端口，从而突破网关的限制！具体使用方法如下：下载并安装好该软件后，运行NukeNabber，点击“File”菜单下的“Options”选项，再点击该窗口中的“Advanced”标签，在“Porttomonitor:”栏中填入4000（图2），然后点击“Add/ModifyPort”将其加入到NukeNabber中，该端口就被占用掉。
用同样的方法把网关封锁的其他端口占用掉就可以达到自由使用QQ的目的了！
登录,服务器,地址,登录,服务器,的,原理,如今,杭州哪里有粉黛乱子草花海？附具体地址
1、浙大紫金港校区浙大开启了“春有樱花，夏有荷，秋有粉草，冬有松”的打卡模式。
日常羡慕别人家学校~地址：杭州市西湖区余杭塘路866号门票：免费!出行攻略：地铁5号线至浙大紫金港2、萧山张家弄村萧山有一片更大更艳的粉黛花海，那就是戴村张家弄村。
地址：杭州市萧山区戴村张家弄村门票：免费!出行攻略：公交车2075/728可以抵达3、钟埭樱花小镇大树下一片粉红花海，私以为这样的场景反而不适合晴天白日，阴阴的天气更有文艺感。
地址：嘉兴市平湖市和盎路124号附近门票：免费!出行攻略：高铁至嘉善南后打车约13min4、302省道粉黛花海在千岛湖镇去文昌镇的302省道旁，粉黛乱子草尤为茂盛，交织成一片粉色的浪漫。
坐高铁的时候也会路过喔~地址：淳安县S302省道西阳段(05省道)门票：免费!5、吉缘花田除了必打卡的粉黛，还有色彩缤纷的花田、教堂、草坪、小火车...浪漫又温馨，分分钟可以拍出人像大片~地址：湖州市妙西镇肇村原乡小镇门票：148元/人(仅供参考)现场购票出行攻略：高铁至湖州站，距离景区16km，打车前往约20min6、碧云花海如云雾般的、唯美、梦幻的粉色，缥缈如轻烟，摇曳似梦幻，轻盈曼妙似粉色云雾。
无论怎么看都粉得一塌糊涂，此刻只愿用相机定格时光~因为是收费的景区，人也比较少，还有很多摆拍利器，花海、风车、路牌、皮卡...面积不大，走走拍拍就当散心啦。
地址：嘉兴市嘉善县大云镇缪家村门票：50元/人(仅供参考)现场购票出行攻略：高铁至嘉善南后打车约13min7、海上花田柔软的粉黛乱子草随风起舞荡漾开来，像是一片粉色绒毯。
10月进入金秋的花田仿佛一个调色盘，把所有的颜色都装了进来。
面对这么美的花田，一定要记得别犯错~除此之外，还有卡丁车、跑马场、秘密花园...马场里跑的，还是原上长驱汗血宝马呢~地址：绍兴市嘉绍大桥南桥头堡门票：49元左右/人，现场购票出行攻略：沪昆高速—嘉绍大桥—G15W高速滨海新城北出口处
盘锦社保查询个人账户登录账号是什么
但请注意，为了保护账户安全，建议在首次登录后及时修改密码。
一、关于社保网站登录帐号盘锦社保卡卡号：每张社保卡都有一个独特的卡号，这通常是最直接的登录账号。
身份证号码：由于社保信息与个人身份信息紧密相关，因此身份证号码也常作为登录账号使用。
绑定的实名制手机号码：在某些地区，为方便用户操作，也支持使用绑定的实名制手机号码作为登录账号。
二、关于社保网站登录密码 社保账户的初始密码一般为“123456”。
但出于安全考虑，强烈建议在首次登录后修改密码，并妥善保管，以防账户被非法访问。
总的来说，登录社保网站时，应确保使用正确的账号和密码，并在官网或可信赖的平台进行操作，以保护个人信息安全。
同时，对于任何要求提供个人信息、索取验证码或向用户收费的情况，都应保持高度警惕，避免不必要的损失。
