String[]数组初始化
创建数组：
//一维数组
String[] str = new String[5]; //创建一个长度为5的String(字符串)型的一维数组
String[] str = new String[]{"","","","",""};
String[] str = {"","","","",""};
//二维数组
String[][] str = new String[2][2]; //创建一个2行2列的二维数组
String[] str = new String[5]; //创建一个长度为5的String(字符串)型的一维数组
String[] str = new String[]{"","","","",""};
String[] str = {"","","","",""};
//二维数组
String[][] str = new String[2][2]; //创建一个2行2列的二维数组
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