英文: 1. When using the and operator, both sides of the statement being evaluated must > be true for the whole statement to be true. 英文: 2. When using the or operator, if either side of the comparison is true, then the >whole statement is true. 英文: 3. Lastly, the not oper...
Thenotkeyword is a logical operator, and is used to reverse the result of the conditional statement: Example Test ifais NOT greater thanb: a =33 b =200 ifnot a > b: print("a is NOT greater than b") Try it Yourself » Nested If ...
有时有超过两个可能的情况,于是我们需要多于两个的分支。 表示像这样的计算的方法之一是链式条件(chained conditional): if x < y: print('x is less than y') elif x > y: print('x is greater than y') else: print('x and y are equal') 1. 2. 3. 4. 5. 6. elif 是“else if”的缩写。
ws.conditional_format('B2:C11',{'type':'cell','criteria':'>','value':7,'format':format_g})## 小于5,红色 ws.conditional_format('B2:C11',{'type':'cell','criteria':'<','value':5,'format':format_r})## 在5与7之间,黄色 ws.conditional_format('B2:C11',{'type':'cell','criter...
ws.conditional_formatting.add('A2:B100', CellIsRule(operator='greaterThan', formula=['A$1'], stopIfTrue=True, fill=redFill)) #在[1,5]之内的标红 ws.conditional_formatting.add('C1:F100', CellIsRule(operator='between', formula=['1', '5'], stopIfTrue=True, fill=redFill)) ws['A1...
if (true) // true is our conditional expression std::cout << "The condition is true" << std::endl; else std::cout << "The condition is false" << std::endl; 注意:if 和 else 后面都没有分号。 以下程序的作用相似: bool b ( false ) ; ...
>>> a = "python" >>> b = "javascript" >>> assert a == b Traceback (most recent call last): File "<stdin>", line 1, in <module> AssertionError >>> assert (a == b, "Values are not equal") <stdin>:1: SyntaxWarning: assertion is always true, perhaps remove parentheses? >...
首先是 Go 语言,官网的FAQ专门列出了一个问题:“Why does Go not have the?:operator?”。 Go 语言不支持“?:”运算符,而是推荐使用原生的“if-else”写法。文档的解释很简短,只有一段话: Go 语言没有 ?: 运算符,因为语言的设计者们经常看到它被用来创建难以理解的复杂表达式。虽然 if-else 形式比较长,但...
如果你想尝试做更多的比较,可再编写一些测试,并将它们加入到conditional_tests.py中。对于下面列出的各种测试,至少编写一个结果为True和False的测试。 检查两个字符串相等和不等。 使用函数lower() 的测试。 检查两个数字相等、不等、大于、小于、大于等于和小于等于。 phone ='iPhone' print("Is phone =='...
http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-ConditionalOperators%3A%3C%2C%3C%3D%2C%3E%2C%3E%3D 版本一: 1 ) . 大于,小于,大于或等于,小于或等于 $gt:大于 $lt:小于 $gte:大于或等于 $lte:小于或等于 例子: