The equal sign and the expression giving the initial value are in fact optional in a variable declaration.

等号和表达式给出的初始值在变量声明时实际上是可选的。

youdao

The requirement for data declaration vary among different programming languages but can include such values such variable name , data type , initial value , and size specifications, etc.

但是要包含这样的数值，比如：可变量的名称、数据方式、初始值以及尺寸规范等。

youdao

The requirement for data declaration vary among different programming languages but can include such values such variable name , data type , initial value , and size specifications, etc.

但是要包含这样的数值，比如：可变量的名称、数据方式、初始值以及尺寸规范等。

youdao