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  • [OC Foundation框架

    NSString是不可变的

    NSMutableString是可变字符串
     
    1.初始化
    2.串联字符串
    3.替换字符串
    4.插入字符串
    5.删除字符串
     
     1 #pragma mark buffer string create
     2 void stringCreate()
     3 {
     4     NSMutableString *mutStr = [[NSMutableString alloc] initWithCapacity:10];
     5     [mutStr setString:@"Go!"];
     6     NSLog(@"%@", mutStr);
     7     [mutStr appendString:@"Hello"];
     8     [mutStr appendFormat:@",age is %i and height is %.2f", 12, 1.54];
     9     NSLog(@"%@", mutStr);
    10    
    11     //Replace string
    12     NSRange r = [mutStr rangeOfString:@"age"];
    13     [mutStr replaceCharactersInRange:r withString:@"number"];
    14     NSLog(@"%@", mutStr);
    15    
    16     //Insert string
    17     [mutStr insertString:@"insert" atIndex:2];
    18     NSLog(@"%@", mutStr);
    19    
    20     //Delete string
    21     NSRange r2 = [mutStr rangeOfString:@"height"];
    22     [mutStr deleteCharactersInRange: r2];
    23     NSLog(@"%@", mutStr);
    24 }
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  • 原文地址:https://www.cnblogs.com/hellovoidworld/p/4119400.html
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