删除函数:删除函数(erase) 疯狂代码！

删除函数:删除函数(erase)

删除(erase)
语法: iterator erase( iterator pos );
iterator erase( iterator start, iterator end );
basic_

&erase( size_type index = 0, size_type num = npos );

erase

可以:

删除pos指向

, 返回指向下

个

迭代器,
删除从start到end

所有

, 返回

个迭代器,指向被删除

最后

个

下

个位置
删除从index索引开始

num个

, 返回*this.
参数index 和 num 有默认值, 这意味着erase

可以这样

:只带有index以删除index后

所有

或者不带有任何参数以删除所有

. 例如:

s("So, you like donuts, eh? Well, have all the donuts in the world!");
cout << "The original

is '" << s << "'" << endl;

s.erase( 50, 14 );
cout << "Now the

is '" << s << "'" << endl;

s.erase( 24 );
cout << "Now the

is '" << s << "'" << endl;

s.erase

;
cout << "Now the

is '" << s << "'" << endl;
将显示

The original

is 'So, you like donuts, eh? Well, have all the donuts in the world!'
Now the

is 'So, you like donuts, eh? Well, have all the donuts'
Now the

is 'So, you like donuts, eh?'
Now the

is ''

删除函数:删除函数(erase)