var jsonData = {};
var arr = [[1, 'boy', 'dabing'], [2, 'girl', 'dabing']];
for (var i = 0; i < arr.length; i++) {
var key = arr[i][1];
var value = arr[i][2];
jsonData[key] = value;
console.log(jsonData['boy'])// 'dabing'
eg2(数组中包含的是对象)
var jsonData = {};
var arr = [ { id: 3, name: 'MAN_MIDDLESCHOOL_STUDENT', value: 'predefine' },
{ id: 4, name: 'FEMALE_MIDDLESCHOOL_STUDENT', value: 'predefine' }];
for (var i = 0; i < arr.length; i++) {
var key = arr[i].name;
var value = arr[i].value;
jsonData[key] = value;
console.log(jsonData);//{ MAN_MIDDLESCHOOL_STUDENT: 'predefine', FEMALE_MIDDLESCHOOL_STUDENT: 'predefine' }