Loops Imacros循环并更改代理？

我想让脚本imacros设置datasoruce ts.txt，并添加100个条目column1

我想将循环设置为第1列，并在完成imacros后清除cookies并更改代理

VERSION BUILD=9052613
TAB T=1
FILTER TYPE=IMAGES STATUS=ON
SET !DATASOURCE xxx.txt
URL GOTO=http://
wait seconds=3
TAG POS=1 TYPE=INPUT:TEXT FORM=ACTION:/ ATTR=NAME:xxxx CONTENT={{!COL1}}
wait seconds=3``
TAG POS=1 TYPE=INPUT:SUBMIT FORM=ACTION:/ ATTR=ID:submit
wait seconds=3
CLEAR

变更代理 循环

设置！错误忽略是
设置数据源**proxies.csv**
设置数据源_第2列
设置回路1
设置数据源_行{{！循环}
设置超时60
清楚的
'代理模块
URL GOTO=about:config
URL GOTO=javascript:varprefb=Components.classes[“@mozilla.org/preferences service；1”].getService（Components.interfaces.nsIPrefBranch）；varstr=Components.classes[“@mozilla.org/supports string；1”].createInstance（Components.interfaces.nsistupsstring）；str.data=“{！COL1}}”；prefb.setComplexValue（“network.proxy.http”，Components.interfaces.nsISupportsString，str）；
URL GOTO=about:config
URL GOTO=javascript:gPrefBranch.setIntPref（“network.proxy.http_port”，{{{！COL2}}）；

尽量解释清楚，我一点也不懂

SET !ERRORIGNORE YES

SET !DATASOURCE **proxies.csv**

SET !DATASOURCE_COLUMNS 2

SET !LOOP 1

SET !DATASOURCE_LINE {{!LOOP}}

SET !TIMEOUT 60

CLEAR


'proxy module

URL GOTO=about:config

URL GOTO=javascript:var<SP>prefb<SP>=<SP>Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefBranch);var<SP>str<SP>=<SP>Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);str.data<SP>=<SP>"{{!COL1}}";prefb.setComplexValue("network.proxy.http",<SP>Components.interfaces.nsISupportsString,<SP>str);

URL GOTO=about:config

URL GOTO=javascript:gPrefBranch.setIntPref("network.proxy.http_port",{{!COL2}});