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如何求得二维数组的一维长度？
比如有个数组
String[][] provinceAndCity = newString[][]{{"直辖市","北京","上海","天津","重庆"},{"特别行政区","香港","澳门"},{"黑龙江","哈尔滨","齐齐哈尔","牡丹江","大庆","伊春","双鸭山","鹤岗","鸡西","佳木斯","七台河","黑河","绥化","大兴安岭"}};
怎么得到这个数组的一维是3？
比如有个数组
String[][] provinceAndCity = newString[][]{{"直辖市","北京","上海","天津","重庆"},{"特别行政区","香港","澳门"},{"黑龙江","哈尔滨","齐齐哈尔","牡丹江","大庆","伊春","双鸭山","鹤岗","鸡西","佳木斯","七台河","黑河","绥化","大兴安岭"}};
怎么得到这个数组的一维是3？
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ruisheng_412 2009-08-19
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provinceAndCity.length 一维
provinceAndCity[i].length 二维
provinceAndCity[i].length 二维
