C# 數字轉字串補0 & 字串補0 – jashliao部落格

C# 數字轉字串補0 & 字串補0

數字轉字串補0:
this.f1_textBox2.Text = String.Format(“{0:0000000000000000}”, (Convert.ToInt16(this.f1_textBox2.Text) + 1));

字串補0:
string str = “9”;
str.PadLeft(4, ‘0’);//–>0009
str.PadRight(4, ‘0’);//–>9000