#include <iostream>
#include <string>
using namespace std;
/*---------------------------------
14-33~39字符串的常见处理函数
---------------------------------*/
void main()
{
char a[20]="My name is "; //a的空间大小定义为20，务必容纳下连接后的所有字符
char b[] ="jack";
char c[] ="jack";
char d[] ="ABCDEF";
cout<<strcat(a,b)<<endl; //返回a的指针 把字符串b连接到字符串a
cout<<a<<endl;
cout<<strcpy(a,b)<<endl; //返回a的指针 把字符串b拷贝到字符串a
cout<<a<<endl;
if(0==strcmp(c,b)) //字符串大小比较
cout<<"它们是相等的"<<endl;
strupr(a); //小写字符转大写字符
cout<<a<<endl;
strlwr(d); //大写字符转小写字符
cout<<d<<endl;
cout<<"length of d[] is: "<<strlen(d)<<endl;
#include <string>
using namespace std;
/*---------------------------------
14-33~39字符串的常见处理函数
---------------------------------*/
void main()
{
char a[20]="My name is "; //a的空间大小定义为20，务必容纳下连接后的所有字符
char b[] ="jack";
char c[] ="jack";
char d[] ="ABCDEF";
cout<<strcat(a,b)<<endl; //返回a的指针 把字符串b连接到字符串a
cout<<a<<endl;
cout<<strcpy(a,b)<<endl; //返回a的指针 把字符串b拷贝到字符串a
cout<<a<<endl;
if(0==strcmp(c,b)) //字符串大小比较
cout<<"它们是相等的"<<endl;
strupr(a); //小写字符转大写字符
cout<<a<<endl;
strlwr(d); //大写字符转小写字符
cout<<d<<endl;
cout<<"length of d[] is: "<<strlen(d)<<endl;
}
运行结果：
My name is jack
My name is jack
jack
jack
它们是相等的
JACK
abcdef
length of d[] is: 6
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