first commit

历届学生/fontendseven/每天课程/2021-11-26/js/http.js

@@ -0,0 +1,39 @@
+class HTTP {
+
+    constructor() {
+        this.xhr = new XMLHttpRequest();
+    }
+
+    get(option) {
+        return new Promise((success, error) => {
+            var GetParams = ""
+            for (const key in option.data) {
+                GetParams += `&${key}=${option.data[key]}`
+            }
+            GetParams = GetParams.replace("&", "?")
+            option.url += GetParams;
+
+            this.xhr.open("GET", config.checkUrl() + option.url)
+            this.xhr.send()
+            this.onreadystatechange(success, error)
+        })
+    }
+
+    post() { }
+
+    onreadystatechange(success, error) {
+        this.xhr.onreadystatechange = () => {
+            if (this.xhr.readyState == 4) {
+                if (this.xhr.status == 200) {
+                    success(JSON.parse(this.xhr.responseText));
+                } else {
+                    console.log("暂无数据");
+                    error(this.xhr)
+                }
+
+            }
+        }
+    }
+
+
+}