%5B0%5D表示什麼意思

students%5B0%5D表示：students[0]

%5B爲左中括號[

%5D爲右中括號]

這樣就明白了

var qs = require('qs');
var obj = {
  name:'Tom',
  description:'hello',
  hobbies:['basketball','swimming']
};
//stringify查詢字符串
var str = qs.stringify(obj);
console.log(str);
//運行結果：name=Tom&descript=hello&hobbies%5B0%5D=basketball&hobbies%5B1%5D=swimming