Merge pull request #513 from passchaos/master

MarisaKirisame · web-flow · commit 3d4426a2058a · 2016-07-18T01:20:08.000+08:00
不应该再加上&amp;mut，已经是可变引用
diff --git a/io/io.md b/io/io.md
@@ -26,7 +26,7 @@ Read 由于每调用一次 `read` 方法都会调用一次系统API与内核交
 use std::io;
 
 fn read_from_stdin(buf: &mut String) -> io::Result<()> {
-	try!(io::stdin().read_line(&mut buf));
+	try!(io::stdin().read_line(buf));
 	Ok(())
 }
 ```

Original file line number	Diff line number	Diff line change
@@ -26,7 +26,7 @@ Read 由于每调用一次 `read` 方法都会调用一次系统API与内核交
`26`	`26`	`use std::io;`
`27`	`27`
`28`	`28`	`fn read_from_stdin(buf: &mut String) -> io::Result<()> {`
`29`		`- try!(io::stdin().read_line(&mut buf));`
	`29`	`+ try!(io::stdin().read_line(buf));`
`30`	`30`	`Ok(())`
`31`	`31`	`}`
`32`	`32`	```