练习

2021-04-29 17:16:40 +08:00
parent 812be57880
commit 55c598cdb1
195 changed files with 12788 additions and 34 deletions
--- a/teaching/jwl/课件/es6/awaitasync.html
+++ b/teaching/jwl/课件/es6/awaitasync.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <script>
+        const fs = require('fs');
+
+        const readFile = function (fileName) {
+        return new Promise(function (resolve, reject) {
+            fs.readFile(fileName, function(error, data) {
+            if (error) return reject(error);
+            resolve(data);
+            });
+        });
+        };
+
+        const gen = function* () {
+        const f1 = yield readFile('/etc/fstab');
+        const f2 = yield readFile('/etc/shells');
+        console.log(f1.toString());
+        console.log(f2.toString());
+        };
+
+
+        var gen1=async function(){
+            const f1 = await readFile('/etc/fstab');
+            const f2 = await readFile('/etc/shells');
+            console.log(f1.toString());
+            console.log(f2.toString());
+        }
+    </script>
+</head>
+<body>
+    
+</body>
+</html>