比较两个 NSString 的相似度 [英] Compare similarity of two NSStrings

问题描述

我想比较两个 NSString.如果用户输入巨石阵"，应该得到一个答案边界"=几乎等于"，因为正确的答案是:巨石阵".

I would like to compare two NSStrings. If the user types "Stonehhengge", should get a "border on answer"="almost equals", because the right answer is: "Stonhenge".

我想要一个字符串等于另一个字符串的百分比.如果巨石阵"是 9 个字母，并且输入的文本包含来自巨石阵"的 8 个字母，但它不等于巨石阵"，例如:巨石阵"不等于巨石阵"，但它接近 - 我会想知道字符串的匹配程度.

I would like a percentage of how much one string equals another. If "Stonhenge" is 9 letters, and the typed text contain 8 letters from "Stonhenge", but it's not equal to "Stonhenge", for example: "Stonehange" is not equal to "Stonhenge", but it's near - I'd like to know how near a match the strings are.

我只知道 isEqual:.如果您输入巨石阵"，您将匹配并获得正确的符号.如果文本字段的文本不相等，则不会得到匹配并得到错误的符号.

I only know isEqual:. If you type "Stonehenge", you match and will get the right symbol. If text field's text is not equal, you do not get a match and get the wrong symbol.

推荐答案

编辑您想要计算 Levenshtein 距离.

您可能想查看这个问题 计算两个 NSStrings 之间的差异数

You may want to check out this question Calculate number of differences between two NSStrings

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