function ajax(options){
//补全
}
ajax({
url: 'http://api.jirengu.com/weather.php',
data: {
city: '北京'
},
onsuccess: function(ret){
console.log(ret)
},
onerror: function(){
console.log('服务器异常')
}
})
function ajax(opts){
var url = opts.url
var type = opts.type || 'GET'
var dateType = opts.dataType || 'json'
var onsuccess = opts.onsuccess || function(){}
var onerror = opts.onerror || function(){}
var data = opts.data || {}
var dataStr = []
for(var key in data) {
dataStr.push(key + '=' + data[key])
}
dataStr = dataStr.join('&')
if(type === 'GET') {
url += '?' + dataStr
}
var xhr = new XMLHttpRequest()
xhr.open(type, url, true)
xhr.onload = function(){
if(xhr.readystatus === 4&& xhr.status === 200){
if(dataType === 'json'){
onsuccess(JSON.parse(xhr.responseText))
}else{
onsuccess(xhr.responseText)
}
}else{
onerror()
}
}
xhr.onerror = onerror
if(type === 'POST'){
xhr.send(dataStr)
}else{
xhr.send()
}
}
ajax({
url: 'http://api.jirengu.com/weather.php',
data: {
city: '北京'
},
onsuccess: function(ret){
console.log(ret)
},
onerror: function(){
console.log('服务器异常')
}
})
