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  • Objectivec NSMutableString

            //NSMutableString stringWithCapacity, stringWithString
    NSMutableString *str1 = [NSMutableString stringWithCapacity:100];
    NSMutableString *str2 = [NSMutableString stringWithString:@"Hello, 上海!"];
    NSLog(@"str1 address: %p", str1);
    NSLog(@"str2: %@", str2);

    //NSMutableString appendFormat, appendString
    [str1 appendFormat:@"苹果的iO"];
    [str1 appendFormat:@"S, 很喜欢best!"];
    NSLog(@"str1 appendFormat: %@", str1);
    [str1 appendString:@"你呢?"];
    NSLog(@"str1 appendString: %@", str1);

    //NSMutableString deleteCharactersInRange
    [str1 deleteCharactersInRange: [str1 rangeOfString:@"best"]];
    NSLog(@"str1 deleteCharactersInRange: %@", str1);

    //NSMutableString
    [str1 insertString:@"系统" atIndex:(6)];
    NSLog(@"str1 insertString:atIndex: %@", str1);

    //NSMutableString assign/address
    NSMutableString *str3 = str1;
    NSLog(@"str1 address: %p", str1);
    NSLog(@"str3 address: %p", str3);
    NSLog(@"str3: %@", str3);
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  • 原文地址:https://www.cnblogs.com/shuaixf/p/2375970.html
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