From bbf3f460c59df4b99d6ad404ed70c5bc278acd3b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=A8=8B=E5=B8=85=E7=BF=94?= <16699465019@163.com>
Date: Wed, 13 Dec 2023 12:14:23 +0800
Subject: [PATCH] 12.12

---
 .../12.12.md"                                 | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 "52\345\217\267 \347\250\213\345\270\205\347\277\224/12.12.md"

diff --git "a/52\345\217\267 \347\250\213\345\270\205\347\277\224/12.12.md" "b/52\345\217\267 \347\250\213\345\270\205\347\277\224/12.12.md"
new file mode 100644
index 0000000..270b9a4
--- /dev/null
+++ "b/52\345\217\267 \347\250\213\345\270\205\347\277\224/12.12.md"	
@@ -0,0 +1,32 @@
+# 作业
+
+```js
+
+// 1. 定义myAxios函数，接收配置对象，返回Promise对象
+function myAxios(config) {
+  return new Promise((resolve, reject) => {
+    // 2. 发起XHR请求，默认请求方法为GET
+    const xhr = new XMLHttpRequest()
+    xhr.open(config.method || 'GET', config.url)
+    xhr.addEventListener('loadend', () => {
+      // 3. 调用成功/失败的处理程序
+      if (xhr.status >= 200 && xhr.status < 300) {
+        resolve(JSON.parse(xhr.response))
+      } else {
+        reject(new Error(xhr.response))
+      }
+    })
+    xhr.send()
+  })
+}
+
+// 4. 使用myAxios函数，获取省份列表展示
+myAxios({
+  url: 'http://hmajax.itheima.net/api/province'
+}).then(result => {
+  console.log(result)
+  document.querySelector('.my-p').innerHTML = result.list.join('<br>')
+}).catch(error => {
+  console.log(error)
+  document.querySelector('.my-p').innerHTML = error.message
+})
\ No newline at end of file
-- 
Gitee