今天偶然打开苹果网站，发现它的字体挺好看的，于是起了好奇之心，想看看它用的是什么字体。
打开它的css，发现它的font-family是这样定义的："SF Pro SC","SF Pro Display","SF Pro Icons","PingFang SC","Helvetica Neue","Helvetica","Arial",sans-serif;
SF Pro SC，这是什么字体？网上搜了一下，找不到，只查到SF Pro Text和SF Pro Display，而这两个是英文字体。
SF全称是San Francisco。官网上是这么介绍SF Pro的："This sans-serif typeface is the system font for iOS, macOS, and tvOS, and includes a rounded variant."。可见，这是iOS的系统字体。
SF Pro Text和SF Pro Display都属于SF Pro家族，19点以下的文本使用SF Pro Text，20点以上文本使用SF Pro Display。
那么，SF Pro SC呢，还有繁体版的SF Pro TC究竟是什么字体呢？我又仔细查看了下苹果网站的css，发现下面一段代码：
@font-face {
font-family:'SF Pro SC';
font-style:normal;
font-weight:200;
src:local('??'), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Thin.woff2") format("woff2"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Thin.woff") format("woff"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Thin.ttf") format("truetype");
}
@font-face {
font-family:'SF Pro SC 200';
src:url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Thin.eot");
}
@font-face {
font-family:'SF Pro SC';
font-style:normal;
font-weight:300;
src:local('??'), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Light.woff2") format("woff2"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Light.woff") format("woff"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Light.ttf") format("truetype");
}
@font-face {
font-family:'SF Pro SC 300';
src:url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Light.eot");
}
@font-face {
font-family:'SF Pro SC';
font-style:normal;
font-weight:500;
src:local('??'), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Medium.woff2") format("woff2"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Medium.woff") format("woff"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Medium.ttf") format("truetype");
}
@font-face {
font-family:'SF Pro SC 500';
src:url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Medium.eot");
}
@font-face {
font-family:'SF Pro SC';
font-style:normal;
font-weight:600;
src:local('??'), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Semibold.woff2") format("woff2"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Semibold.woff") format("woff"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Semibold.ttf") format("truetype");
}
@font-face {
font-family:'SF Pro SC 600';
src:url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Semibold.eot");
}
@font-face {
font-family:'SF Pro SC';
font-style:normal;
font-weight:400;
src:url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Regular.eot");
src:local('??'), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Regular.woff2") format("woff2"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Regular.woff") format("woff"), url("/wss/fonts/SF-Pro-SC/v1/PingFangSC-Regular.ttf") format("truetype");
}
原来SF Pro SC就是PingFang SC，SF Pro TC就是PingFang TC。
