结合txt、数组让微信随机显示的JS代码

结合txt、数组让微信随机显示的JS代码!

//JavaScriptDocument
vararr=[];
tips=newArray(2);
test=newArray();
varb;

$.ajax({
url:"http://web.com/wx.txt",
async:false,
success:function(data,status){

console.log(arguments)
console.log(data)
console.log(data.toString())
b=data.split('
');

for(i=0;i<b.length;i++){
test[i]=b[i];
}
},
error:function(data,status){
console.log(arguments)
}
});

tips=test;

randnum=Math.floor(Math.random()*tips.length);
functionrefeshAdd(){
if(!sessionStorage.getItem("num")){
sessionStorage.setItem("num",randnum)
}
num=sessionStorage.getItem('num');
returnnum=num;
if(num==tips.length-1){

num=0

}else{
varnum=parseInt(sessionStorage.getItem("num"))+1

}
sessionStorage.setItem("num",num);
returnreturnnum

}

functioncontains(arr,obj){
vari=arr.length;
while(i--){
if(arr[i]===obj){
returntrue;
}
}
returnfalse;
}


index=refeshAdd();
functionfun()
{
if(contains(arr,index)){
index=refeshAdd();
fun();
}
returnindex;
}
console.log(fun());
varstxlwx=tips[index];

varwx="<imgsrc='img/"+stxlwx+".jpg'>";