创建VB工程，运行时可将文本框中的文字缩小以及还原。

窗体中包括下列控件：标签、文本框和两个命令按钮，窗体标题为“字符缩小”，文本框字号为30磅。在文本框输入一串字符；按下“缩小”按钮时字号缩小为原来的一半（每按一下都会缩小为一半），界面如右图。

-Create a VB project, run-time can shrink the text in the text box and restore. Form includes the following controls: labels, text boxes and two command buttons, the form titled " narrow character" , a text box font size to 30 pounds. In the text box to enter a string of characters　press the " narrow"　button font size reduced by half (each click will be reduced to half), the interface such as the right.