js如何对本地地址进行截取，获取到传递过来的字段？

// 获取页面中的地址,对字段进行处理

//例如：http://localhost/video_learning/mobile/selectCourse/detail.html?courseId=1131417761608630272&&selectCourseflag=0&&creditHour=2转为courseId=1131417761608630272&&selectCourseflag=0&&creditHour=2

function getlocationAddressByte() {
　　var url = window.location.search;
　　return url.substring(url.lastIndexOf(‘?‘)+1,url.length);
};

// 获取页面中的地址,对字段进行处理
// 例如： url?selectCourseflag=0&&creditHour=2转为”selectCourseflag=0&&creditHour=2″,creditHour:2

//{courseId: “1131417761608630272”, selectCourseflag: “0”, creditHour: “2”}
function getlocationAddressByte() {
var url = window.location.search;
var localtion = url.substring(url.lastIndexOf(‘?‘)+1,url.length);
var tempObj = {};
var arr = localtion.split(‘&&‘);

for (var i = 0; i < arr.length; i++) {
var tempTypeArray = arr[i].split(‘=‘);
if (tempObj[tempTypeArray[0]]) {
tempObj[tempTypeArray[0]] += ‘,‘ + tempTypeArray[1];
} else {
tempObj[tempTypeArray[0]] = tempTypeArray[1];
}
}
// console.log(tempObj);
};