code: function getChineseIp(provinceArray){
  	var provinceArray=provinceArray||getProvinces(chineseIps);
  	if(!(provinceArray instanceof Array)){
  		provinceArray=[provinceArray];
  	}
  	var provinceName=getRandomItem(provinceArray);
  	var ipAddress=getProvinceRandomIp(provinceName);
  	return ipAddress;
  }
docs: 随机产生一个中国IP