Format and remove 05.2.md spaces

zh/05.2.md

@@ -18,99 +18,99 @@ Go中支持MySQL的驱动目前比较多，有如下几种，有些是支持data
 接下来的几个小节里面我们都将采用同一个数据库表结构：数据库test，用户表userinfo，关联用户信息表userdetail。
 ```sql
 
-	CREATE TABLE `userinfo` (
-		`uid` INT(10) NOT NULL AUTO_INCREMENT,
-		`username` VARCHAR(64) NULL DEFAULT NULL,
-		`departname` VARCHAR(64) NULL DEFAULT NULL,
-		`created` DATE NULL DEFAULT NULL,
-		PRIMARY KEY (`uid`)
-	);
+CREATE TABLE `userinfo` (
+	`uid` INT(10) NOT NULL AUTO_INCREMENT,
+	`username` VARCHAR(64) NULL DEFAULT NULL,
+	`departname` VARCHAR(64) NULL DEFAULT NULL,
+	`created` DATE NULL DEFAULT NULL,
+	PRIMARY KEY (`uid`)
+);
 
-	CREATE TABLE `userdetail` (
-		`uid` INT(10) NOT NULL DEFAULT '0',
-		`intro` TEXT NULL,
-		`profile` TEXT NULL,
-		PRIMARY KEY (`uid`)
-	)
+CREATE TABLE `userdetail` (
+	`uid` INT(10) NOT NULL DEFAULT '0',
+	`intro` TEXT NULL,
+	`profile` TEXT NULL,
+	PRIMARY KEY (`uid`)
+)
 ```
 如下示例将示范如何使用database/sql接口对数据库表进行增删改查操作
 ```Go
 
-	package main
+package main
 
-	import (
-		_ "github.com/go-sql-driver/mysql"
-		"database/sql"
-		"fmt"
-		//"time"
-	)
+import (
+	_ "github.com/go-sql-driver/mysql"
+	"database/sql"
+	"fmt"
+	//"time"
+)
 
-	func main() {
-		db, err := sql.Open("mysql", "astaxie:astaxie@/test?charset=utf8")
+func main() {
+	db, err := sql.Open("mysql", "astaxie:astaxie@/test?charset=utf8")
+	checkErr(err)
+
+	//插入数据
+	stmt, err := db.Prepare("INSERT userinfo SET username=?,departname=?,created=?")
+	checkErr(err)
+
+	res, err := stmt.Exec("astaxie", "研发部门", "2012-12-09")
+	checkErr(err)
+
+	id, err := res.LastInsertId()
+	checkErr(err)
+
+	fmt.Println(id)
+	//更新数据
+	stmt, err = db.Prepare("update userinfo set username=? where uid=?")
+	checkErr(err)
+
+	res, err = stmt.Exec("astaxieupdate", id)
+	checkErr(err)
+
+	affect, err := res.RowsAffected()
+	checkErr(err)
+
+	fmt.Println(affect)
+
+	//查询数据
+	rows, err := db.Query("SELECT * FROM userinfo")
+	checkErr(err)
+
+	for rows.Next() {
+		var uid int
+		var username string
+		var department string
+		var created string
+		err = rows.Scan(&uid, &username, &department, &created)
 		checkErr(err)
-
-		//插入数据
-		stmt, err := db.Prepare("INSERT userinfo SET username=?,departname=?,created=?")
-		checkErr(err)
-
-		res, err := stmt.Exec("astaxie", "研发部门", "2012-12-09")
-		checkErr(err)
-
-		id, err := res.LastInsertId()
-		checkErr(err)
-
-		fmt.Println(id)
-		//更新数据
-		stmt, err = db.Prepare("update userinfo set username=? where uid=?")
-		checkErr(err)
-
-		res, err = stmt.Exec("astaxieupdate", id)
-		checkErr(err)
-
-		affect, err := res.RowsAffected()
-		checkErr(err)
-
-		fmt.Println(affect)
-
-		//查询数据
-		rows, err := db.Query("SELECT * FROM userinfo")
-		checkErr(err)
-
-		for rows.Next() {
-			var uid int
-			var username string
-			var department string
-			var created string
-			err = rows.Scan(&uid, &username, &department, &created)
-			checkErr(err)
-			fmt.Println(uid)
-			fmt.Println(username)
-			fmt.Println(department)
-			fmt.Println(created)
-		}
-
-		//删除数据
-		stmt, err = db.Prepare("delete from userinfo where uid=?")
-		checkErr(err)
-
-		res, err = stmt.Exec(id)
-		checkErr(err)
-
-		affect, err = res.RowsAffected()
-		checkErr(err)
-
-		fmt.Println(affect)
-
-		db.Close()
-
+		fmt.Println(uid)
+		fmt.Println(username)
+		fmt.Println(department)
+		fmt.Println(created)
 	}
 
-	func checkErr(err error) {
-		if err != nil {
-			panic(err)
-		}
+	//删除数据
+	stmt, err = db.Prepare("delete from userinfo where uid=?")
+	checkErr(err)
+
+	res, err = stmt.Exec(id)
+	checkErr(err)
+
+	affect, err = res.RowsAffected()
+	checkErr(err)
+
+	fmt.Println(affect)
+
+	db.Close()
+
+}
+
+func checkErr(err error) {
+	if err != nil {
+		panic(err)
 	}
-	
+}
+
 ```
 
 通过上面的代码我们可以看出，Go操作Mysql数据库是很方便的。