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1 #include<stdio.h>
2 #include<
assert
.h>
3
4
class
MyString
5 {
6
public
:
7 MyString()
8 {
9 _data =
new
char
[1];
10 _data =
'\0'
;
11 }
12
13 MyString(
char
* str)
14 {
15
assert
(str);
16 _data =
new
char
[
strlen
(str) + 1];
17
strcpy
(_data, str);
18 }
19
20 MyString(
const
MyString& string)
21 {
22
assert
(string._data);
23 _data =
new
char
[
strlen
(string._data) + 1];
24
strcpy
(_data, string._data);
25 }
26
27 ~MyString()
28 {
29
delete
[] _data;
30 }
31
32 MyString& operator= (
const
MyString& string)
33 {
34
assert
(string._data);
35
if
(*
this
== string)
36 {
37
return
*
this
;
38 }
39
40
delete
[] _data;
41 _data = NULL;
42 _data =
new
char
[
strlen
(string._data) + 1];
43
strcpy
(_data, string._data);
44
return
*
this
;
45 }
46
47
protected
:
48
char
* _str;
49 }
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1 #include<stdio.h>
2 #include<
assert
.h>
3
4
class
MyString
5 {
6
public
:
7 MyString()
8 {
9 _data =
new
char
[1];
10 _data =
'\0'
;
11 }
12
13 MyString(
char
* str)
14 {
15
assert
(str);
16 _data =
new
char
[
strlen
(str) + 1];
17
strcpy
(_data, str);
18 }
19
20 MyString(
const
MyString& string)
21 {
22
assert
(string._data);
23 _data =
new
char
[
strlen
(string._data) + 1];
24
strcpy
(_data, string._data);
25 }
26
27 ~MyString()
28 {
29
delete
[] _data;
30 }
31
32 MyString& operator= (
const
MyString& string)
33 {
34
assert
(string._data);
35
if
(*
this
!= string)
36 {
37 MyString tem(string);
38
39
char
* del = tem._data
40 tem._data = _data;
41 _data = del;
42 }
43
return
*
this
;
44 }
45
46
protected
:
47
char
* _str;
48 }
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本文转自 ye小灰灰 51CTO博客，原文链接：http://blog.51cto.com/10704527/1783629，如需转载请自行联系原作者
