tuple_strlentuple_strlenTupleStrlenTupleStrlentuple_strlen (算子)

名称

tuple_strlentuple_strlenTupleStrlenTupleStrlentuple_strlen — 确定字符串元组中每个字符串的长度。

签名

描述

tuple_strlentuple_strlenTupleStrlenTupleStrlenTupleStrlentuple_strlen checks the length of every string within the input tuple T1T1T1T1t1t1 and returns the length of each string with the output tuple LengthLengthLengthLengthlengthlength. All elements of T1T1T1T1t1t1 may only consist of strings. Otherwise tuple_strlentuple_strlenTupleStrlenTupleStrlenTupleStrlentuple_strlen returns an error.

If the input tuple is empty, the operator returns an empty tuple.

Unicode 码点与字节

The string length references Unicode code points. One Unicode code point may be composed of multiple bytes in the UTF-8 string. If the length should reference the raw bytes of the string, this operator can be switched to byte mode with set_system('tsp_tuple_string_operator_mode','byte')set_system("tsp_tuple_string_operator_mode","byte")SetSystem("tsp_tuple_string_operator_mode","byte")SetSystem("tsp_tuple_string_operator_mode","byte")SetSystem("tsp_tuple_string_operator_mode","byte")set_system("tsp_tuple_string_operator_mode","byte")。If 'filename_encoding'"filename_encoding""filename_encoding""filename_encoding""filename_encoding""filename_encoding" is set to 'locale'"locale""locale""locale""locale""locale" (legacy), this operator always uses the byte mode.

For general information about string operations see Tuple / String Operations。

HDevelop 内联操作

HDevelop provides an in-line operation for tuple_strlentuple_strlenTupleStrlenTupleStrlenTupleStrlentuple_strlen, which can be used in an expression in the following syntax:

Length := strlen(T1)

执行信息

• 多线程类型：独立（即使使用独占算子也能并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 未采用并行化处理。

参数

替代

tuple_strstrtuple_strstrTupleStrstrTupleStrstrTupleStrstrtuple_strstr, tuple_strrstrtuple_strrstrTupleStrrstrTupleStrrstrTupleStrrstrtuple_strrstr, tuple_strchrtuple_strchrTupleStrchrTupleStrchrTupleStrchrtuple_strchr, tuple_strrchrtuple_strrchrTupleStrrchrTupleStrrchrTupleStrrchrtuple_strrchr, tuple_substrtuple_substrTupleSubstrTupleSubstrTupleSubstrtuple_substr, tuple_str_first_ntuple_str_first_nTupleStrFirstNTupleStrFirstNTupleStrFirstNtuple_str_first_n, tuple_str_last_ntuple_str_last_nTupleStrLastNTupleStrLastNTupleStrLastNtuple_str_last_n, tuple_splittuple_splitTupleSplitTupleSplitTupleSplittuple_split, tuple_environmenttuple_environmentTupleEnvironmentTupleEnvironmentTupleEnvironmenttuple_environment

另见

tuple_is_stringtuple_is_stringTupleIsStringTupleIsStringTupleIsStringtuple_is_string

模块

基础