update book code

2025-08-12 04:48:29 +08:00 · 2015-03-03 12:25:25 -05:00
parent b8c82ba4e5
commit eab1d98ba8
465 changed files with 15392 additions and 1572 deletions
--- a/eBook/examples/chapter_5/range_string.go
+++ b/eBook/examples/chapter_5/range_string.go
@@ -1,80 +1,80 @@
-package main
-
-import "fmt"
-
-func main() {
-	str := "Go is a beautiful language!"
-	fmt.Printf("The length of str is: %d\n", len(str))
-	for pos, char := range str {
-		fmt.Printf("Character on position %d is: %c \n", pos, char)
-	}
-	fmt.Println()
-	str2 := "Chinese: 日本語"
-	fmt.Printf("The length of str2 is: %d\n", len(str2))
-	for pos, char := range str2 {
-    	fmt.Printf("character %c starts at byte position %d\n", char, pos)
-	}
-	fmt.Println()
-	fmt.Println("index int(rune) rune    char bytes")
-	for index, rune := range str2 {
-    	fmt.Printf("%-2d      %d      %U '%c' % X\n", index, rune, rune, rune, []byte(string(rune)))
-	}
-}
-/* Output:
-The length of str is: 27
-Character on position 0 is: G 
-Character on position 1 is: o 
-Character on position 2 is:   
-Character on position 3 is: i 
-Character on position 4 is: s 
-Character on position 5 is:   
-Character on position 6 is: a 
-Character on position 7 is:   
-Character on position 8 is: b 
-Character on position 9 is: e 
-Character on position 10 is: a 
-Character on position 11 is: u 
-Character on position 12 is: t 
-Character on position 13 is: i 
-Character on position 14 is: f 
-Character on position 15 is: u 
-Character on position 16 is: l 
-Character on position 17 is:   
-Character on position 18 is: l 
-Character on position 19 is: a 
-Character on position 20 is: n 
-Character on position 21 is: g 
-Character on position 22 is: u 
-Character on position 23 is: a 
-Character on position 24 is: g 
-Character on position 25 is: e 
-Character on position 26 is: ! 
-
-The length of str2 is: 18
-character C starts at byte position 0
-character h starts at byte position 1
-character i starts at byte position 2
-character n starts at byte position 3
-character e starts at byte position 4
-character s starts at byte position 5
-character e starts at byte position 6
-character : starts at byte position 7
-character   starts at byte position 8
-character 日 starts at byte position 9
-character 本 starts at byte position 12
-character 語 starts at byte position 15
-
-index int(rune) rune    char bytes
-0       67      U+0043 'C' 43
-1       104      U+0068 'h' 68
-2       105      U+0069 'i' 69
-3       110      U+006E 'n' 6E
-4       101      U+0065 'e' 65
-5       115      U+0073 's' 73
-6       101      U+0065 'e' 65
-7       58      U+003A ':' 3A
-8       32      U+0020 ' ' 20
-9       26085      U+65E5 '日' E6 97 A5
-12      26412      U+672C '本' E6 9C AC
-15      35486      U+8A9E '語' E8 AA 9E
-*/
+package main
+
+import "fmt"
+
+func main() {
+	str := "Go is a beautiful language!"
+	fmt.Printf("The length of str is: %d\n", len(str))
+	for pos, char := range str {
+		fmt.Printf("Character on position %d is: %c \n", pos, char)
+	}
+	fmt.Println()
+	str2 := "Chinese: 日本語"
+	fmt.Printf("The length of str2 is: %d\n", len(str2))
+	for pos, char := range str2 {
+    	fmt.Printf("character %c starts at byte position %d\n", char, pos)
+	}
+	fmt.Println()
+	fmt.Println("index int(rune) rune    char bytes")
+	for index, rune := range str2 {
+    	fmt.Printf("%-2d      %d      %U '%c' % X\n", index, rune, rune, rune, []byte(string(rune)))
+	}
+}
+/* Output:
+The length of str is: 27
+Character on position 0 is: G 
+Character on position 1 is: o 
+Character on position 2 is:   
+Character on position 3 is: i 
+Character on position 4 is: s 
+Character on position 5 is:   
+Character on position 6 is: a 
+Character on position 7 is:   
+Character on position 8 is: b 
+Character on position 9 is: e 
+Character on position 10 is: a 
+Character on position 11 is: u 
+Character on position 12 is: t 
+Character on position 13 is: i 
+Character on position 14 is: f 
+Character on position 15 is: u 
+Character on position 16 is: l 
+Character on position 17 is:   
+Character on position 18 is: l 
+Character on position 19 is: a 
+Character on position 20 is: n 
+Character on position 21 is: g 
+Character on position 22 is: u 
+Character on position 23 is: a 
+Character on position 24 is: g 
+Character on position 25 is: e 
+Character on position 26 is: ! 
+
+The length of str2 is: 18
+character C starts at byte position 0
+character h starts at byte position 1
+character i starts at byte position 2
+character n starts at byte position 3
+character e starts at byte position 4
+character s starts at byte position 5
+character e starts at byte position 6
+character : starts at byte position 7
+character   starts at byte position 8
+character 日 starts at byte position 9
+character 本 starts at byte position 12
+character 語 starts at byte position 15
+
+index int(rune) rune    char bytes
+0       67      U+0043 'C' 43
+1       104      U+0068 'h' 68
+2       105      U+0069 'i' 69
+3       110      U+006E 'n' 6E
+4       101      U+0065 'e' 65
+5       115      U+0073 's' 73
+6       101      U+0065 'e' 65
+7       58      U+003A ':' 3A
+8       32      U+0020 ' ' 20
+9       26085      U+65E5 '日' E6 97 A5
+12      26412      U+672C '本' E6 9C AC
+15      35486      U+8A9E '語' E8 AA 9E
+*/