Question

简书的markdown怎么写代码引用

Answer 1

//静态就交换静态，实例方法就交换实例方法
void Swizzle(Class c, SEL origSEL, SEL newSEL)
{
Method origMethod = class_getInstanceMethod(c, origSEL);
Method newMethod = nil;
if (!origMethod) {
origMethod = class_getClassMethod(c, origSEL);
if (!origMethod) {
return;
}
newMethod = class_getClassMethod(c, newSEL);
if (!newMethod) {
return;
}
}else{
newMethod = class_getInstanceMethod(c, newSEL);
if (!newMethod) {
return;
}
}