NSMutableString 在试题中有用到 分享下NSMutableString的用法 一起学习
NSMutableString生成:
NSMutableString *mstr = [NSMutableString string];
NSMutableString *mstr = [NSMutableString stringWithString:@"我是程序猿"];
string结合:
NSMutableString *ms = [NSMutableString string];
[ms appendString:@"你"];
[ms appendString:@"好"];
设置string里内容:
[ms setString:@"早上好"];
删除string里内容:
[mstr deleteCharactersInRange:NSMakeRange(2,3)];
插入string里内容:
[mstr insertString:@"AI" atIndex:3];
替换string里内容:
[mstr replaceCharactersInRange:NSMakeRange(2,3) withString:@"晚上"]; |
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