Update 01_The_Basics.md (#1204)

dongfangzan · web-flow · commit 960616507f94 · 2022-10-24T21:11:39.000-05:00
勘误，第608行
print("My number is \(muNumber)")  -&gt; print("My number is \(myNumber)")
diff --git a/source/02_language_guide/01_The_Basics.md b/source/02_language_guide/01_The_Basics.md
@@ -605,7 +605,7 @@ if let myNumber = myNumber {
 
 ``` swift
 if let myNumber{
-	print("My number is \(muNumber)")
+	print("My number is \(myNumber)")
 }
 // 输出 "My number is 123"
 ```
