js对url的常见操作

/*设置URL参数值函数*/ function setQueStr(url, ref, value) { var str = ""; if (url.indexOf('?') != -1) str = url.substr(url.indexOf('?') + 1); else return url + "?" + ref + "=" + value; var returnurl = ""; var setparam = ""; var arr; var modify = "0"; if (str.indexOf('&') != -1) { arr = str.split('&'); for (i in arr) { if (arr[i].split('=')[0] == ref) { setparam = value; modify = "1"; } else { setparam = arr[i].split('=')[1]; } returnurl = returnurl + arr[i].split('=')[0] + "=" + setparam + "&"; } returnurl = returnurl.substr(0, returnurl.length - 1); if (modify == "0") if (returnurl == str) returnurl = returnurl + "&" + ref + "=" + value; } else { if (str.indexOf('=') != -1) { arr = str.split('='); if (arr[0] == ref) { setparam = value; modify = "1"; } else { setparam = arr[1]; } returnurl = arr[0] + "=" + setparam; if (modify == "0") if (returnurl == str) returnurl = returnurl + "&" + ref + "=" + value; } else returnurl = ref + "=" + value; } return url.substr(0, url.indexOf('?')) + "?" + returnurl; } /*获取URL参数值函数*/ function getQueStr(url, ref) { var str = url.substr(url.indexOf('?') + 1); if (str.indexOf('&') != -1) { var arr = str.split('&'); for (i in arr) { if (arr[i].split('=')[0] == ref) return arr[i].split('=')[1]; } } else { return url.substr(url.indexOf('=') + 1) } } /*删除URL参数值函数*/ function delQueStr(url, ref) { var str = ""; if (url.indexOf('?') != -1) str = url.substr(url.indexOf('?') + 1); else return url; var arr = ""; var returnurl = ""; var setparam = ""; if (str.indexOf('&') != -1) { arr = str.split('&'); for (i in arr) { if (arr[i].split('=')[0] != ref) { returnurl = returnurl + arr[i].split('=')[0] + "=" + arr[i].split('=')[1] + "&"; } } return url.substr(0, url.indexOf('?')) + "?" + returnurl.substr(0, returnurl.length - 1); } else { arr = str.split('='); if (arr[0] == ref) return url.substr(0, url.indexOf('?')); else return url; } } /*设置URL参数值函数*/ function setQueStr(url, ref, value) { var str = ""; if (url.indexOf('?') != -1) str = url.substr(url.indexOf('?') + 1); else return url + "?" + ref + "=" + value; var returnurl = ""; var setparam = ""; var arr; var modify = "0"; if (str.indexOf('&') != -1) { arr = str.split('&'); for (i in arr) { if (arr[i].split('=')[0] == ref) { setparam = value; modify = "1"; } else { setparam = arr[i].split('=')[1]; } returnurl = returnurl + arr[i].split('=')[0] + "=" + setparam + "&"; } returnurl = returnurl.substr(0, returnurl.length - 1); if (modify == "0") if (returnurl == str) returnurl = returnurl + "&" + ref + "=" + value; } else { if (str.indexOf('=') != -1) { arr = str.split('='); if (arr[0] == ref) { setparam = value; modify = "1"; } else { setparam = arr[1]; } returnurl = arr[0] + "=" + setparam; if (modify == "0") if (returnurl == str) returnurl = returnurl + "&" + ref + "=" + value; } else returnurl = ref + "=" + value; } return url.substr(0, url.indexOf('?')) + "?" + returnurl; }