C#split字符串切割

2019-07-16 12:09:10 396 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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用字符串分割的时候只能分割成前四段，再多了就会提醒数组超过索引，是因为我用utf32编码的原因吗

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牧歌ing 2019-07-23

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根据商量好的格式进行分割，传过来的时候一定要有"";"";"";"",如果是随意长度的就要判断数组的个数，不然传三个就会出现这种情况

大葡萄八块一斤 2019-07-16

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把你的getstring内容发出来

wanghui0380 2019-07-16

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额，老问题。所以还是老回答，和splite无关。和串口有关，串口从来就不是你认为的人家发“abc”你就应该收一个"abc"的，也许你get一次只收到一个"a",然后再get一次又收到一个"bc" 所以你想当然认为一定就是4个，显然不对。正确的做法，根据协议分割，符合协议的做你要做的事情，暂时不符合的缓存到下一次判定（当然对于你目前我们只能这么说，在搞啥内存复用，状态机，NIO一类的你更糊涂，还不如直接说给个大缓存，符合移除并通知处理，不符合的留在那里等待下次一起判定）

情似生活 2019-07-16

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取数组赋值先判断一下数组的长度后再赋值。看你的写法返回格式一定能分出四组吗。如果不是的话，赋值那边就不应该写死下标

XBodhi. 2019-07-16

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  //

        // 摘要:

        //     Splits a string into a maximum number of substrings based on the characters in

        //     an array.

        //

        // 参数:

        //   separator:

        //     A character array that delimits the substrings in this string, an empty array

        //     that contains no delimiters, or null.

        //

        //   count:

        //     The maximum number of substrings to return.

        //

        //   options:

        //     System.StringSplitOptions.RemoveEmptyEntries to omit empty array elements from

        //     the array returned; or System.StringSplitOptions.None to include empty array

        //     elements in the array returned.

        //

        // 返回结果:

        //     An array whose elements contain the substrings in this string that are delimited

        //     by one or more characters in separator. For more information, see the Remarks

        //     section.

        //

        // 异常:

        //   T:System.ArgumentOutOfRangeException:

        //     count is negative.

        //

        //   T:System.ArgumentException:

        //     options is not one of the System.StringSplitOptions values.

        public String[] Split(char[] separator, int count, StringSplitOptions options);

        //

        // 参数:

        //   separator:

        //

        //   count:

        //

        //   options:

        public String[] Split(char separator, int count, StringSplitOptions options = StringSplitOptions.None);

        //

        // 参数:

        //   separator:

        //

        //   options:

        public String[] Split(char separator, StringSplitOptions options = StringSplitOptions.None);

        //

        // 摘要:

        //     Splits a string into substrings that are based on the characters in an array.

        //

        // 参数:

        //   separator:

        //     A character array that delimits the substrings in this string, an empty array

        //     that contains no delimiters, or null.

        //

        // 返回结果:

        //     An array whose elements contain the substrings from this instance that are delimited

        //     by one or more characters in separator. For more information, see the Remarks

        //     section.

        public String[] Split(params char[] separator);

        //

        // 摘要:

        //     Splits a string into a maximum number of substrings based on the characters in

        //     an array. You also specify the maximum number of substrings to return.

        //

        // 参数:

        //   separator:

        //     A character array that delimits the substrings in this string, an empty array

        //     that contains no delimiters, or null.

        //

        //   count:

        //     The maximum number of substrings to return.

        //

        // 返回结果:

        //     An array whose elements contain the substrings in this instance that are delimited

        //     by one or more characters in separator. For more information, see the Remarks

        //     section.

        //

        // 异常:

        //   T:System.ArgumentOutOfRangeException:

        //     count is negative.

        public String[] Split(char[] separator, int count);

        //

        // 摘要:

        //     Splits a string into substrings based on the characters in an array. You can

        //     specify whether the substrings include empty array elements.

        //

        // 参数:

        //   separator:

        //     A character array that delimits the substrings in this string, an empty array

        //     that contains no delimiters, or null.

        //

        //   options:

        //     System.StringSplitOptions.RemoveEmptyEntries to omit empty array elements from

        //     the array returned; or System.StringSplitOptions.None to include empty array

        //     elements in the array returned.

        //

        // 返回结果:

        //     An array whose elements contain the substrings in this string that are delimited

        //     by one or more characters in separator. For more information, see the Remarks

        //     section.

        //

        // 异常:

        //   T:System.ArgumentException:

        //     options is not one of the System.StringSplitOptions values.

        public String[] Split(char[] separator, StringSplitOptions options);

        //

        // 参数:

        //   separator:

        //

        //   count:

        //

        //   options:

        public String[] Split(String separator, int count, StringSplitOptions options = StringSplitOptions.None);

        //

        // 参数:

        //   separator:

        //

        //   options:

        public String[] Split(String separator, StringSplitOptions options = StringSplitOptions.None);

        //

        // 摘要:

        //     Splits a string into a maximum number of substrings based on the strings in an

        //     array. You can specify whether the substrings include empty array elements.

        //

        // 参数:

        //   separator:

        //     A string array that delimits the substrings in this string, an empty array that

        //     contains no delimiters, or null.

        //

        //   count:

        //     The maximum number of substrings to return.

        //

        //   options:

        //     System.StringSplitOptions.RemoveEmptyEntries to omit empty array elements from

        //     the array returned; or System.StringSplitOptions.None to include empty array

        //     elements in the array returned.

        //

        // 返回结果:

        //     An array whose elements contain the substrings in this string that are delimited

        //     by one or more strings in separator. For more information, see the Remarks section.

        //

        // 异常:

        //   T:System.ArgumentOutOfRangeException:

        //     count is negative.

        //

        //   T:System.ArgumentException:

        //     options is not one of the System.StringSplitOptions values.

        public String[] Split(String[] separator, int count, StringSplitOptions options);

        //

        // 摘要:

        //     Splits a string into substrings based on the strings in an array. You can specify

        //     whether the substrings include empty array elements.

        //

        // 参数:

        //   separator:

        //     A string array that delimits the substrings in this string, an empty array that

        //     contains no delimiters, or null.

        //

        //   options:

        //     System.StringSplitOptions.RemoveEmptyEntries to omit empty array elements from

        //     the array returned; or System.StringSplitOptions.None to include empty array

        //     elements in the array returned.

        //

        // 返回结果:

        //     An array whose elements contain the substrings in this string that are delimited

        //     by one or more strings in separator. For more information, see the Remarks section.

        //

        // 异常:

        //   T:System.ArgumentException:

        //     options is not one of the System.StringSplitOptions values.

        public String[] Split(String[] separator, StringSplitOptions options);

xiaoid 2019-07-16

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与分割没有关系。
比如字符串： 1，2，3，4
分割后，只有4个数组成员，你要访问5个成员，当然出错了。
所以这是因为你的字符串的原因。使用前，先检查数据格式，再使用。

palhotel 2019-07-16

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引用 3 楼 weixin_45380906 的回复:

Getstring是串口发给缓冲区的数据

就算是串口读的，也要学会写单元测试，或者简单写个测试程序，看看你这个函数能正常工作不能，构造一个输入，看看输出是不是符合预期

weixin_45380906 2019-07-16

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Getstring是串口发给缓冲区的数据

ManBOyyy 2019-07-16

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不會循環字符串數組的嗎？你那個數組是寫死的，當然會出現你這個問題

C#split字符串切割

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