以 CGRect 為例,一般情況的初始化方式為:
CGRect rect = CGRectMake(0, 0, 30, 30);
使用簡便式(C99結構體初始化語法)可以是這樣:
CGRect rect = {.origin.x=0, .origin.y=0, .size.width=30, .size.height=30};
或
CGRect rect = {0, 0, 30, 30};
以 CGRect 為例,一般情況的初始化方式為:
CGRect rect = CGRectMake(0, 0, 30, 30);
使用簡便式(C99結構體初始化語法)可以是這樣:
CGRect rect = {.origin.x=0, .origin.y=0, .size.width=30, .size.height=30};
或
CGRect rect = {0, 0, 30, 30};