; case '/': System.out.println(d1/d2); } } } 6.3 循环...6.3.1 while 循环 public class Test{ public static void main(String[] args){ int lim = 5; ...int sum = 0; int i = 1; while(i<=lim){ sum =sum + i; i++; } System.out.println...("sum = " + sum); int...
String Manipulation Functions: Write a Bash script that defines functions for common string manipulations such as string length, substring extraction, and string concatenation. Pass strings as arguments to these functions. Code: #!/bin/bash # Function to get the length of a string string_length()...
$ word=function $ to_upper "$word" $ printf "%c%s\n" "$_UPR" "${word#?}" Function 要将整个单词转换成大写,可以使用清单 7-5 中的upword函数。 清单7-5。upword,将单词转换成大写 _upword() #@ USAGE: upword STRING { local word=$1 while [ -n "$word" ] ## loop until nothin...
# syntax.sh# Declaring functions using the reserved word function# Multilinefunctionf1 {echoHello I\'m function 1 echo Bye! } # One line function f2 { echo Hello I\'mfunction2;echoBye!; }# Declaring functions without the function reserved word# Multilinef3() {echoHello I\'m function 3...
/bin/bash # declare STRING variable STRING="Hello World" #print variable on a screen echo $STRING Navigate to a directory where your hello_world.sh is located and make the file executable: $ chmod +x hello_world.sh Now you are ready to execute your first bash script:...
my_function 当调用函数时,read命令会等待用户输入,并将输入的值赋给变量name。然后,脚本会继续执行后续的命令。 使用read命令运行函数的优势是可以与用户进行交互,获取用户的输入,并根据输入的值执行相应的逻辑。这在编写交互式脚本或需要用户输入的脚本时非常有用。 read命令的应用场景包括但不限于: 编写交互式脚本...
You can assign data to a variable using the equals sign (=). The data you store in a variable can either be a string or a number. Let’s create a variable now on the command line: chapter_number=5 The variable name is on the left hand side of the equals sign, and the data whic...
调用有参函数的方法语法:function_name arg1 arg2 arg3 …其中,function_name 是函数名,后面的 arg1 等 是函数的参数,要用空格隔开。获取函数参数的个数用户可以通过 系统变量 $# 来获取脚本的参数的个数,当然,函数也是。[linux@localhost SkySong]$ func() > { > echo "参数个数:$#" > } shell调用...
As a result, the function printed $(uname) instead of Linux. Finally, let’s use double quotes to disable word splitting and enable command substitution: $ countparams "Hello World of $(uname)" 1 Hello World of LinuxCopy By using double quotes, we managed to pass the string value as a...
安装HAP包报“failed to install bundle. install debug type not same”错误 从一个UIAbility跳转到另外一个Ability时,是否支持自定义转场动画的设置?怎么实现 应用级别的context和HSP级别的context冲突吗?HSP中不能通过getContext(this).resourceManager.getStringValue($r('app.string.test_string').id)的方式获...