主题：这个代码看不懂

Dim s1 As String ="abcd"
Dim s2 As String = s1.PadLeft(6,"0")
Dim s3 As String = s1.PadLeft(6)
Output.Show("s2 = """ & s2 & """")
Output.Show("s3 = """ & s3 & """")

结果

s2 = "00abcd"

s3 = "  abcd"

Output.Show("s2 = """ & s2 & """")   最后的"""" 和前面的 "s2="""   中的"  与结果对应不起来  

能解释下吗？