发布网友 发布时间:2022-04-22 09:46
共1个回答
热心网友 时间:2023-10-09 02:31
String s="gsdhgjsjsgdjh";\x0d\x0aint a=s.length();//一定要有括号;\x0d\x0aint a[]={45,5,8,45,21,6,68,4,8}\x0d\x0aint b=a.length;//没有括号偶;b=9.\x0d\x0aint a[]={{45,25},{,6,7,1},{6,,1},{9,6,2,1,2}};\x0d\x0aint b=a.length//b=4,\x0d\x0aint c=a[0].length// c=2\x0d\x0aint d=a[3].length//d=5;;