How can i test whether my NSString contains the following file name : test.pdf
这是我的法典。
NSString *pdfLocation = [documentDirectory stringByAppendingPathComponent:@"test.pdf"];
谷歌是你的朋友。 可查阅http://objco在校友:com/2009/04/12/does-a-nsstring-contain-a-substring/“rel=“nofollow”>ts。
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我希望我与四舍五入的累进角进行网上讨论。
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