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   -> C++知识库 -> 7 【c++入门】for循环的认识 -> 正文阅读

[C++知识库]7 【c++入门】for循环的认识

呵呵呵,欢迎欢迎啊

今天是小明爸的生日,小明要为爸爸在程序上写300个爸爸生日快乐

于是他是这么写的

保证准确300个 cout

#include<iostream>
using namespace std;
int main(){
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
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		cout<<"爸爸生日快乐!"<<endl;
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		cout<<"爸爸生日快乐!"<<endl;
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		cout<<"爸爸生日快乐!"<<endl;
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		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
		cout<<"爸爸生日快乐!"<<endl;
	return 0;
}

可是这么累,小明于是开始了他的进阶之路……………………………………

努力中…………

努力中…………

努力中…………

努力中…………

努力中…………

之后他把程序优化了一下

变成了for循环

#include<iostream>
using namespace std;
int main(){
	for(int i=1;i<=300;i++){
		cout<<"爸爸生日快乐!\n";
	}
	return 0;
}

嗯嗯,回到正题

for用在知道循环次数的情况下,执行相同的动作

循环顺序:

好了,晚安!!

好困9999票
不困1票

投票结果:好困

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