Str := Str.Remove(0,1);</tr>
<tr>
<td>复制字串</td>
<td>Str := Copy(Str,2);</td>
<td>Str := Str.Substring(0,2);</td>
</tr>
<tr>
<td>转成大写</td>
<td>UpperCase(Str);</td>
<td>Str := Str.ToUpper;</td>
</tr>
<tr>
<td>转成小写</td>
<td>LowerCase(Str);</td>
<td>Str := Str.ToLower;</td>
</tr>
<tr>
<td>重复字符</td>
<td>StringOfChar('-',15);</td>
<td>Str := String.Cretae('-',15);</td>
</tr>
<tr>
<td>找子字符</td>
<td>Pos('ABC123',Str);</td>
<td>i := Str.IndexOf('ABC123');</td>
</tr>
<tr>
<td>是这些字</td>
<td>CharInSet(Str[1],[' ',#13]);</td>
<td>Str.Chars[0].IsInArray([' ',#13]);</td>
</tr>
<tr>
<td style="text-align: right;" colspan="3"><span style="color: #c0c0c0;">制表 龟山阿卍
</td>