放大英文字母。很简单的小程序。适用于初学者参考，提供灵感。用C语言编写，实现英文字符串按比例横向、纵向放大，斜体等功能。-Enlarge English letters. Is a simple small program. Suitable for beginners reference, provide inspiration. Using C language, to achieve English string according to the proportion of horizon