需要处理得字符串是 var str="[{att=ceshiw,arrid=2343434},{att=ceshiw,arrid=2343434}]"
需要处理成 var str=[{att：ceshiw,arrid：2343434},{att：ceshiw,arrid：2343434}]
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script>
var str="[{att=ceshiw,arrid=2343434},{att=ceshiw,arrid=2343434}]"
var as= str.replace(/\[|\}|\]/g,'')
var arr= as.split('{')
console.log(arr)
var arr1=arr.reduce(function(a,b){
if(b){
var zz= b.split(',').reduce(function(x,y){
if(y){
var a1=y.split('=')
x[a1[0]]=a1[1]
}
return x
},{
})
a.push(zz)
}
return a
},[])
console.log(arr1)
</script>
</body>
</html>