var uname : string = "Runoob"
var score1 : number = 50
var score2 : number = 42.50
var sum = score1 + score2
console.log("名字" + uname)
console.log("第一个科目成绩" + score1)
console.log("第二个科目成绩" + score2)
console.log("总成绩" + sum)

console.log('===================================')

var global_num = 12
class Numbers {
  num_val = 13
  static sval = 10

  storeNum() : void {
    var local_num = 14
  }
}
console.log(global_num)
console.log(Numbers.sval)
var obj = new Numbers()
console.log(obj.num_val)

console.log('===================================')