1.字符串的截取 - (NSString *)substringFromIndex:(NSUInteger)from; 从指定位置from开始(包括指定位置的字符)到尾部 从指定位置from开始(包括指定位置的字符)到尾部 - (NSString *)substringToIndex:(NSUInt 字符串 指定位置 子串 转载 mb5ff981d806017
substringpublic String substring(int beginIndex)返回一个新的字符串,它是此字符串的一个子字符串。该子字符串始于指定索引处的字符,一直到此字符串末尾。例如:"unhappy".substring(2) r java 字符串截取工具类 取字符串函数 java 字符串 子字符串 css...
_upword() #@ USAGE: upword STRING { local word=$1 while [ -n "$word" ] ## loop until nothing is left in $word do to_upper "$word" _UPWORD=$_UPWORD$_UPR word=${word#?} ## remove the first character from $word done } upword() { _upword "$@" printf "%s\n" "$_UP...
Delete substring in bash Let's talk about removing substrings. Let's say you want to remove part of a string. In that case, just provide the substring to the main string like this: ${string/substring} ✋ Only the first occurrence of a substring is deleted this way. If you want to ...
You can now remove the substring “big” from the string fact: kabary@handbook:~/scripts$ echo ${fact/big} Sun is a star Let’s create another string named cell: cell="112-358-1321" Now let’s say you want to remove all the dashes from thecellstring; the following statement will on...
EN#!/bin/sh foo() { local basedir=$1 local all_entries=`ls -c` ...
In line 1, we create a variable named var. The var variable can contain any string from the terminal or a file string. The second line prints the entire string using $ and curly braces. In the last line, we use the # symbol with a variable and get the length of the string printed...
Bash provides us with a mechanism to remove a substring from a given string using the parameter expansion. It always removes only one matched substring. Depending on usage, it can match the longest or shortest substring and match starting from the beginning or from the end. It’s important to...
String Functions in Bash Just like arithmetic operations on integers or floating point numbers, certain operations/functions are possible/available for strings. For example, we can compare two strings for equality (if we have to find a string or substring, then equality is required). Here is the...
Trim all white-space from string and truncate spacesThis is an alternative to sed, awk, perl and other tools. The function below works by abusing word splitting to create a new string without leading/trailing white-space and with truncated spaces....