//判断是否内网IP function IsLAN(ip) { ip.toLowerCase(); if(ip=='localhost') return true; var a_ip = 0; if(ip == "") return false; var aNum = ip.split("."); if(aNum.length != 4) return false; a_ip += parseInt(aNum[0]) << 24; a_ip += parseInt(aNum[1]) << 16; a_ip += parseInt(aNum[2]) << 8; a_ip += parseInt(aNum[3]) << 0; a_ip=a_ip>>16 & 0xFFFF; return( a_ip>>8 == 0x7F || a_ip>>8 == 0xA || a_ip== 0xC0A8 || (a_ip>=0xAC10 && a_ip<=0xAC1F) ); }
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