Data update

Task/Loops-Foreach/Objective-C/loops-foreach-1.m

@@ -1,5 +1,5 @@
 NSArray *collect;
-//...
-for(Type i in collect){
+// ...
+for (Type i in collect) {
    NSLog(@"%@", i);
 }

Task/Loops-Foreach/Objective-C/loops-foreach-2.m

@@ -1,7 +1,7 @@
 NSArray *collect;
-//...
+// ...
 NSEnumerator *enm = [collect objectEnumerator];
 id i;
-while( (i = [enm nextObject]) ) {
+while ((i = [enm nextObject])) {
   // do something with object i
 }