摘要： int num = 50000000; Stopwatch wat = new Stopwatch(); string[] arr=new string[num]; for (int i = 0; i < num; i++) { // arr[i] = "";与 arr[i] = string.Empty;和 arr[i] = "字符串";所占内存差不错 //但是，arr[i] = "5"... 阅读全文