UC知道c++求调试,,我想连接两个字符串
来源：百度知道 编辑：UC知道 时间：2024/06/01 16:32:27
#include<iostream.h>
#include<string>
void connet(char *p1,char *p2)
{
int len1=strlen(p1);
while(*p2!='\0')
{
int len=strlen(p1);
*(p1+len)++=*p2++;
}
}
void main()
{
char *p1="I am",*p2=" a boy";
cout<<p1;
}
#include<string>
void connet(char *p1,char *p2)
{
int len1=strlen(p1);
while(*p2!='\0')
{
int len=strlen(p1);
*(p1+len)++=*p2++;
}
}
void main()
{
char *p1="I am",*p2=" a boy";
cout<<p1;
}
为什么不用string.
string 重载了"+"号,连接字符串非常方便.
如果有char* p;char *q则可以string s1=p;string s2=q;
然后,string s3=s1+s2;
cout<<s3即可.
为什么老用char,char[],char *呢...
string 更加安全快捷.
Remarks
If an application attempts to delete a file that does not exist, the DeleteFile function fails.
Use the RemoveDirectory function to delete a directory.
The DeleteFile function fails if an application attempts to delete a file that is open for normal I/O or as a memory-mapped file.
To close an open file handle, use the CloseHandle function.
To unmount a database volume, use the CeUnmountDBVol function
删除一个不存在的文件，或者删除一个刚刚打开还没有关闭的文件是会出错
*(p1+len)++;
p1+len不是变量， 不能执行++操作
改成*((p1++)+len) = *p2++;