fiddler 设置弱网络
1.ctrl+r 打开编辑文件
2.ctrl+f 打开搜索框，搜索 m_SimulateModem
request-trickle-delay 每上传1kb要delay多久，单位ms, 10000ms = 10s
response-trickle-delay 下载时delay
3.切记，设置完成后在 rules->performance->simulate Modem Speeds中勾选选项
request-trickle-delay 每上传1kb要delay多久，单位ms, 10000ms = 10s
response-trickle-delay 下载时delay