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iOS NSString 创建和初始化 + (instancetype)string; + (instancetype)stringWithString:(NSString *)string; + (instancetype)stringWithCharacters:(const unichar *)characters length:(NSUI...

iOS NSString 与 int 相互转换 - 一.NSString 转 int int ivalue = 100; NSString *string = [NSString stringWithFormat:@'%d',ivalue]; 二.int 转 NSString NSString *stringInt = @“120”; ...

Object-C UIImage 添加文字 Object-C UIImage 缩放 Object-C UIImage 裁剪 Object-C UIImage 旋转 Object-C UIImage 合并多张图片 Object-C UIImage 黑白处理 Object-C UIImage 美白 Object-C U...

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GPUImage - GPUImageMultiplyBlendFilter- GPUImage 共 125 个滤镜, 分为四类 1、Color adjustments : 31 filters , 颜色处理相关 2、Image processing : 40 filters , 图像处理相关. 3、Blendi...

Object-C isKindOfClass /* 判断是否为对象是否为ClassName或其子类的实例 */ - (BOOL)isKindOfClass:(Class)aClass;

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