C#通过数组循环没有抛出异常
问题描述:
说我有值的数组:
string[] text = new string[] {"val1", "val2", "val3", "val4", "val5"};
然后,我有一个基本的循环:
Then i have a basic loop:
for(int i=0;i<=30;i++) {
Console.WriteLine(i + " = " + text[i])
}
显然,这将导致出界异常,所以我想要做的是,当计数器达到上限数组的然后回到起点。
Obviously this will cause an out of bounds exception, so what i want to do is when the counter reaches the upper bound of the array then go back to the start.
所以
0 = VAL1
1 = val2的
2 = VAL3
3 = VAL4
4 = val5
5 = VAL1
6 = val2的
7 = VAL3
等
答
您可以使用模运算符:
Console.WriteLine(i + " = " + text[i % 5])