编辑代码

var num = 1
var result = ""
for row in 1...9{
    var tmp = ""
  
    for row in 1..<num{
        tmp = tmp + "\(row)*\(num)=\(row*num)\t"
    }
   
    result =  tmp + "\(row)*\(num)=\(row*num)"
    print(result)
    
   
    num += 1
}