for...of语句在可迭代对象(包括 Array,Map,Set,String,TypedArray,arguments 对象等等)上创建一个迭代循环,调用自定义迭代钩子,并为每个不同属性的值执行语句。 代码语言:txt AI代码解释 const array = ['a', 'b', 'c']; for (const element of array) { console.log(element); } // a // b // ...
SETSERVEROUTPUTONSIZE100000;DECLAREa number(2) ;BEGINFORaINREVERSE10..20LOOP dbms_output.put_line('value of a: '||a);ENDLOOP;END;/ 当上述代码在SQL提示符下执行时,它会产生以下结果 -
oracle - for in loop 循环更新 用法:目的更新B表的数据 查询出A表的字段,命名为表1。然后更新B表 BEGIN FOR 表1 IN ( SELECT [匹配字段],[更新字段] FROM A表 ) loop UPDATE B表 SET B表.[需要更新字段]= 表1.[更新字段]; WHERE B表.[匹配字段]= 表1.[匹配字段]; END loop ; END; 实例:...
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In the beginning, we set the value of Sum to 0. Then, we created a For Next loop to run 10 times, adding the current value of i to Sum on each iteration. Finally, we used a MsgBox to show the value of Sum. If you run the code, you can see the sum value in MsgBox. Example...
(Java for loop Evolution) We will work on an example for displaying names of actors from aCollection. For the sake of simplicity let’s take aListand set this up: 我们将通过一个示例来显示Collection中演员的姓名。 为了简单起见,让我们列出一个列表并进行设置: ...
FOR %%variable IN (set) DO command [command-parameters] 具体例子: For %i in (1 2 3) do @echo %i 之所以要区分cmd窗口和批处理文件两种环境,是因为在这两种环境下,命令语句表现出来的行为虽然基本一样,但是在细节上还是稍有不同。 最明显的一个差异就是:在cmd窗口中,for之后的形式变量I必须使用单百分...
You can set a transaction attribute on the Foreach Loop container to define a transaction for a subset of the package control flow. In this way, you can manage transactions at the level of the Foreach Loop instead of the package level. For example, if a Foreach Loop container repeats a...
If the Foreach Loop container includes multiple tasks, you can map the enumerator collection value to multiple properties of each task. You can set a transaction attribute on the Foreach Loop container to define a transaction for a subset of the package control flow. In this way, you can ...
“It set off before it came to a sudden stop near the top. It lurched forward a little bit more but then stopped again,” she explained. “We then waited and they said we would have to evacuate. They started to bring harnesses up and released the locks so we could put them on in ...