数据类型之间的连接和运算

a = 12

b = 34

c = 56

System.out.println("h1 = " + a + b + c);

System.out.println("h2 = " + (a + b) + c);

System.out.println("h3 = " + ((a + b) + c));

h1 = 123456

h2 = 4656

h3 = 102

 

""后面记得也要加“+”！！！！！！

 

额。。。看的时候自动忽视“哈哈哈哈哈哈”，不再换截图了