模拟实现tostring函数
public static String myToString(int[] array){
String str = "[";
for (int i = 0; i <array.length ; i++) {
str = str+array[i];
if(i != array.length-1){
str+= ",";
}
}
str= str + "]";
return str;
}
public static void main(String[] args) {
int[] array = {1,2,3,4,5,6,7};
String str = myToString(array);
System.out.println(str);
}打印结果:












