# This example will bring you to bash shellmoredeeply. # Function: add two input numbers andthenprint the result.if[ $# -ne2] # error handlingthenecho"Usage - $0 x y"# display help messageecho"Where x and y are
bash复制代码factorial() { if [ $1 -le 1 ]; then echo 1 else local result=$(( $1 * $(factorial $(( $1 - 1 ))) )) echo $result fi } result=$(factorial 5) echo "5的阶乘是:$result" # 输出:5的阶乘是:120 解释: factorial 函数计算一个数字的阶乘。 当输入小于或等于 1 ...
funcs := Vector->New()<FuncRef<IntRef>>; each(i : 10) { funcs->AddBack(FuncRef->New(\() ~ IntRef : () => i->Factorial() * funcs->Size())<IntRef>); }; each(i : funcs) { value := funcs->Get(i)<FuncRef>; func := value->Get(); func()->Get()->PrintLine(); ...
Write a function that print the factorial of a given integer number: #! /bin/bash factorial(){ if [ $1 -le 0 ] then echo "please enter a positive integer" else let factorial=1; for ((let i=2; i<$1; i++)) do factorial=$factorial*i done echo $factorial } read -p "enter...
Loops using while & for loop: Print nos. as 5,4,3,2,1 using while loop Printing the patterns using for loop. Arithmetic in shell scripting: Performing real number calculation in shell script Converting decimal number to hexadecimal number Calculating factorial of given number File handling: S...
Explain when to use "for loop" and the "while loop". What does the following command do when typed in Kali Linux's terminal window? nmap -O -sS 192.168.0.0/24 hosts.txt Write code to complete print_factorial()'s recursive case. Sample output if user_val is 5: 51 =...
factorial=1 j=1 while [ $j -le $n ] # until [ $j -gt $n ] do factorial=$(( ($factorial * $j) )) j=$(( ($j+1) )) done echo The factorial of $n, "$n"'!' = $factorial exit 0 Debugging:在代码调试阶段可以通过bash -x ./script_file以 debug 模式运行 script,或者对于...
Support concurrent programming/thread; 支持地址引用,类似指针但受一定的保护; Support address reference, similar to pointer but protected to some extent; 支持编译成单独的可执行文件以便发布或者代码保护; Support compilation into separate executable files for release or code protection; 支持以系统服务...
Factorial ... Why Loops include for, forEach, while, do, for...of and for...in. You might argue that built in array methods such as map or reduce also uses loops. Well that's true, so we are going to define our own. 循环包括 for、 forEach、 while、 do、 for...of 和for.....
It should have well defined instructions: Each step of the algorithm has to be precisely defined; the instructions should be unambiguously specified for each case. It should be effective: The algorithm should solve the problem it was designed to solve. And it should be possible to demonstrate th...