//透明度固定为1,以0x开头的十六进制转换成的颜色[UIColorcolorWithHex:333333];+(UIColor*)colorWithHex:(long)hexColor;//0x开头的十六进制转换成的颜色,透明度可调整[UIColorcolorWithHex:123456alpha:0.4];+(UIColor*)colorWithHex:(long)hexColoralpha:(float)opacity;//颜色转换三:iOS中十六进制的颜色(以#开头)转换为UIColor//[UIColorcolorWithHexSt
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