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NSString *string_content = "I'm jordy";
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char *char_content = [string_content cStringUsingEncoding:NSASCIIStringEncoding];
char*转换为NSString类型的代码如下:
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char char_array[1024];
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NSString *string_content = [[NSString alloc] initWithCString:(const char*)char_array
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encoding:NSASCIIStringEncoding];
实例:将NSString类型的16进制数转为int类型。
步骤:
1、将NSString类型转换为char类型;
2、通过sscanf()函数得到int类型16进制数的值;
代码:
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int color;
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NSString *color_string = @"0xff0000";
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char *color_char = [color_string cStringUsingEncoding:NSASCIIStringEncoding];
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sscanf(color_char,"%x",&color);
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NSLog(@"color: %i",color);