1.将上面的代码保存为*.jsee文件
2.在EmEditor宏菜单中将该文件导入
3.选中要去除重复的文本，执行此宏即可

var s = document.selection.Text;
var ss = s.split("\r\n");

var Out = "";
var i = 0, j = 0, FindIt = false;
var OutArray = new Object();

for ( i=0; i<ss.length; i++ ) {
    OutArray[ss[i]] = "";
}
for ( var key in OutArray ) {
    Out += key + "\r\n"
}

document.selection.Text = Out;

懒人下载： https://one.nie.ge/?/Code/%E5%8E%BB%E9%87%8D.jsee

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