讀取本地文件怎栽，獲取string 或者 data
NSString *path = [[NSBundle mainBundle] pathForResource:@"xxx" ofType:@"xxx"];
NSError *error = nil;
NSString *content = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:&error];
NSData * data = [NSData dataWithContentsOfFile: path];
iOS中字符串的用法
iOS 關(guān)于textFeild 和 鍵盤的設(shè)置
關(guān)于delegate
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