最赞回答 / 慕粉4364288
y就是指我们定义的变量y的值, +号的作用是连接字符,这里连接了后面双引号里面内容,是一个空格,这样每输出一次y的值也要输出一个空格,这样就把输出的每个数字都隔开了(5 4 3 2 1)不然他们就会连在一起(54321)这样子。
2018-04-21
static void Main(string[] args)
{
int y=5;
while(y<10)
{
y++;
}
while(y>=1)
{
Console.Write(y+" ");
y--;
}
{
int y=5;
while(y<10)
{
y++;
}
while(y>=1)
{
Console.Write(y+" ");
y--;
}
2018-04-21
int x = 5;
int y = 5;
int z = 5;
++x;
Console.Write(x);
Console.Write(++y);
Console.Write(++z);
把x++改成++x,把y++改成++y,就可以了
因为:比如给x赋值,
a = x++;a = x;x = x+1;
a = ++x;x = x+1;a = x;
int y = 5;
int z = 5;
++x;
Console.Write(x);
Console.Write(++y);
Console.Write(++z);
把x++改成++x,把y++改成++y,就可以了
因为:比如给x赋值,
a = x++;a = x;x = x+1;
a = ++x;x = x+1;a = x;
2018-04-20