熟悉訓練之string基礎操作

//string 專項練習

#include
#include
#include
using
namespace std;
intmain()
cout<
begin()
;it!=str.
end();
++it)
puts(""
);str.
insert
(str.
size()
," mia san mia");
//在字串長度下標處開始，插入新的字串
cout
erase(0
,12);
//從下標0處開始，刪除12個
cout
insert(0
,"champion ");
//在下標0處插入字串
cout
erase(8
);//從下標8處（含8）開始全刪除
cout
clear()
;//字串清空
cout
"hala madrid"
;    string str1=
"to be"
;    string str2=
"not to be"
;    string str3=
"that is a question"
;    string str4=str1+
",";
//"to be ,"
str4=str4+str2+
';';
//"to be , not to be; "
str4+
=str3;
cout
"abc"
;    string str6=
"abd"
;    string str7=
"bbc";if
(str5<=str6) cout<"<="

if(str5<=str7) cout<"<="

find
("madrid");
//在字串中查詢指定字元用find()，若找到返回起始對應下標，如找不到返回string::npos
cout
if(index!=string::npos) cout<" ";
index=str0.
find
('b');
if(index==string::npos) cout<<
"404 not found"

substr(3
,5);
//substr()返回字串的子串函式。從第3個開始往後數5個：3.4.5.6.7
cout
}/*hala madrid
11h a l a   m a d r i d a
h a l a   m a d r i d
hala madrid mia san mia
mia san mia
champion mia san mia
champion
to be,not to be;that is a question
abc<=abd
abc<=bbc
55 404 not found
a mad
process returned 0 (0x0)   execution time : 3.121 s
press any key to continue.
*/

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