%5B0%5D表示什么意思

students%5B0%5D表示：students[0]

%5B为左中括号[

%5D为右中括号]

这样就明白了

1var qs = require('qs');
2var obj = {
3  name:'Tom',
4  description:'hello',
5  hobbies:['basketball','swimming']
6};
7//stringify查询字符串
8var str = qs.stringify(obj);
9console.log(str);
10//运行结果：name=Tom&descript=hello&hobbies%5B0%5D=basketball&hobbies%5B1%5D=swimming