1if 语句if开头，fi结尾[ 条件判断 ]就是使用test命令判断，两端必须有空格if如果 和then在一行，需要...
If we were to convert the script above to a shell function to includeit in a larger program, we could replace the exit commands with return statementsand get the desired behavior: 类似地,通过带有一个整数参数的 return 命令,shell 函数可以返回一个退出状态。如果我们打算把上面的脚本转变为一个 ...
IF函数在2003以上版本最多允许嵌套64层，而IFS 函数最多允许测试127 个不同的条件，所以从判断条件上来...
else … fi...(s) to be executed if expression is not true fi 如果 expression 返回 true,那么 then 后边的语句将会被执行;否则,执行 else 后边的语句 3.4K40 Python-if-elif-else语句 /bin/env python # coding=gb2312 # -*- coding: gb2312 -*- from __future__ import division ### if-els...
x=5if[$x= 5 ];thenecho"x equals 5."elseecho"x does not equal 5."fi or we can enter it directly at the command line (slightly shortened): 或者我们可以直接在命令行中输入以上代码(略有缩短): [me@linuxbox~]$x=5[me@linuxbox~]$if[$x=5];thenecho"equals 5";elseecho"does ...
We have three different types of IF statements in VBA. 1. IF-Then IF THEN is the simplest form of an IF statement. All we need to do is specify a condition to check and if that condition is TRUE it will perform a task. But, if that condition is FALSE it will do nothing and skip...
if () { // simple form with {}'s to group statements <statement> <statement> } if () { // full then/else form <statement> } else { <statement> } Stanford CS Education Library This [the above section] is document #101, Essential C, in the Stanford CS Education Libra...
Yes, you can use "else if" statements in conjunction with Boolean variables. By utilizing Boolean variables, you can set specific conditions to true or false, and then use "else if" statements to check the state of these variables and execute different code blocks accordingly. This can be pa...
Example of Ladder if (if else if) StatementsIn this example, we're showing the usage of if...else if...else statement. We've created a variable x and initialized it to 30. Then in the if statement, we're checking x with 10. As if statement is false, control jumps to else if ...
statements(s) 1. 2. 示例1 1 for letter in 'Python': # 第一个实例 2 print ('当前字母 :', letter) 3 4 fruits = ['banana', 'apple', 'mango'] 5 for fruit in fruits: # 第二个实例 6 print( '当前水果 :', fruit) 7