Objective C -将NSString写入plist。

I'm writing an NSString to a plist file but after its written to the plist, and when I try to open i get the following message "This document "mylist.plist" could not be opened XML parser error: Unexpected character 2 at line 1 Old-style plist parser error: Unexpected';' or '=' after key at line 1"I'm writing an NSString to a plist file but aft