ELSE IF statement

英 [els ɪf ˈsteɪtmənt]

美 [els ɪf ˈsteɪtmənt]

【计】否则-如果语句， ELSE IF语句

The solution provided is remarkably simple: you add an extra if statement to the else clause.
提供的解决方案非常简单：给else子句添加一个额外的if语句。
If none of the conditions are true, it will execute the "else" action, if one is present, and then continue executing lines following the entire "if, elif, else" statement.
如果没有条件为真，则将执行“else”操作，如果有一个条件为真，则继续执行整个“if，elif，else”语句之后的行。
The while loop, as was the case with the if statement, supports an optional else clause containing a block of program statements executed when the expression is False.
while循环与if语句一样，支持一个可选的else子句，其中包含一个当表达式计算为False时执行的程序语句块。
The if statement supports an optional else clause that indicates a block of program statements that should be processed if the Boolean expression evaluates False.
if语句支持一个可选的else子句，指示当布尔表达式计算为False时应该处理的程序语句块。