获取数组和字符串的长度数组有length属性int len=a.length;字符串有length()方法int s_len=str.length();版权声明:本文为xingxinghann原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接和本声明。原文链接:https://blog.csdn.net/xingxinghann/article/details/80337013