Basic -> String
int a = 9;
// 麻烦
String str = Integer.toString(a)
// 简单
String str = a + "";
String -> Basic
String str = "9";
int num = Integer.parseInt(a);
Basic -> String
int a = 9;
// 麻烦
String str = Integer.toString(a)
// 简单
String str = a + "";
String -> Basic
String str = "9";
int num = Integer.parseInt(a);