84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
3350 person learning
180660 person learning
48569 person learning
18603 person learning
40936 person learning
1549 person learning
1183 person learning
32909 person learning
CGContextSetTextMatrix(context, CGAffineTransformIdentity);
这句话的具体作用是什么啊? 网上搜了好多大都说是 “设置字形变换矩阵为CGAffineTransformIdentity,也就是说每一个字形都不做图形变换 “???
解释的好抽象啊,有没有能形象点解释的?