Zho:当 () 大于 ()（积木）

When >  积木 is an 事件类积木 and a 半圆形积木. It starts the script below it when a value (chosen by the dropdown menu) is greater than another value (entered by the number input). The available options are 声音响度, 计时器, and 视讯动作.

声音响度
The loudness in the drop-down menu represents the volume of the sound that the computer microphone is picking up. The highest value is 100, and the lowest value is 1. Once the loudness is higher than the chosen amount, the script will begin to run.

计时器
The timer 变量 is default on Scratch and constantly running, and it can be reset. It counts up from 0. Once the timer's value is greater than the chosen time, the script will run.

用法示例
This block can be used for many things, such as: 當 [聲音響度 v] > (10) 說出 [Be quiet!] (2) 秒 當 [視訊動作 v] > (10) 廣播訊息 [start v] 當 [計時器 v] > (10) 廣播訊息 [end game v]
 * Saying something when voice is entered
 * Being motion activated
 * Starting something after a delay

应用
Using a 等待直到 in conjunction with the 大于 or the 小于 blocks can create a workaround for this block.

重複無限次 等待直到 <(聲音響度) > (20)> . . . 等待直到 <<(聲音響度) > (20)> 不成立> end

Unceasing Timer Exploit
This event block has been occasionally used to create projects that can not be stopped. The following blocks can not be stopped by pressing the red stop sign once the project has started. 當 [計時器 v] > (0) 計時器重置 重複無限次 計時器重置 . . . end This method can be used to simulate a When Stop Clicked block.

参见

 * >