#include <iostream>

using namespace std;

int main() 
{
	//for循环语句
	//打印从0-9这10 个数字
	cout << "打印10个数字" << endl;
	for(int i=0;i<10;i++)
	{
		cout << i << "  ";
	}
	cout << endl;
	cout << "\n " << endl;
	//练习案例 1-100,如果个位含有7或者十位含有7，或者该数字是7的倍数，
	//我们打印敲桌子，，其余数字直接打印输出
	cout << "for循环练习案例" << endl;
	for (int i1 = 0;i1 < 100;i1++)
	{
		int a, b, c;
		a = i1 % 7;
		b = i1 % 10;
		c = i1 / 10;
		if(a==0||b==7||c==7)//判断是否相等用两个==一个=是赋值
		{
			cout << "敲桌子" << "  ";
		}
		else
		{
			cout << "  " << i1 << "  ";
		}
	}
	cout << endl;
	//嵌套循环    打印星图
	cout << "\n " << endl;
	cout << "打印星图" << endl;
	//外层循环，内层执行一轮，外层执行一次
	for (int i2 = 0;i2 < 10;i2++)
	{
		//内层循环
		for (int i3 = 0;i3 < 10;i3++) {
			cout << "* ";
		}
		cout << endl;
	}
	//练习案例
	cout << "\n " << endl;
	cout << "练习案例打印99乘法表" << endl;
	for (int i4=1;i4<10;i4++)
	{
		cout << i4 << endl;
		for (int j4 = 1;j4 <= i4;j4++)
		{
			cout << j4 << " * " << i4 << " = " << j4 * i4 << "  ";

		}
		cout << endl;
	}
	cout << "\n " << endl;
	//跳转语句
	//break语句  1出现在switch条件语句中  
	//2出现在循环语句，跳出循环   
	//3出现在嵌套循环中，跳出循环（不举例）
	//continue
	cout << "continue语句示例" << endl;
	for (int i5 = 0;i5 <= 100;i5++)
	{
		//如果是奇数输出，偶数不输出
		if (0 == i5 % 2)
		{
			continue;
			//此处可以筛选条件，执行到此就不再执行本次循环，执行下一次循环，不会使循环终止
			//break则退出循环不再执行循环语句，终止循环
		}
		cout << i5 << " ";
	}
	cout << endl;
	cout << "\n " << endl;
	//goto 语句，无条件跳珠语句    goto  标记; (标记一般为大写字母)
	//程序中不建议使用goto语句，会导致程序逻辑混乱
	cout << "goto语句示例" << endl;
	cout << "1 ******" << endl;
	goto FLAG;
	cout << "2 ******" << endl;
	cout << "3 ******" << endl;
	FLAG:
	cout << "4 ******" << endl;
	cout << "5 ******" << endl;


	
	system("pause");
		return 0;
}