Ec (2); double quotation marks will enable the program to check whether a variable is used for variables. Only double quotation marks can be compiled to replace them with variable values. & nbsp; there are also double quotation marks for n and so on. The single quotation marks are used to directly output n, and the single quotation marks will directly display the features of the single quotation marks, saving time, the compiler will not translate it as a variable. We recommend that you use single quotes without variables. script ec (2); script
Double quotation marks will enable the program to check whether there is a variable.
Variables can be compiled with double quotation marks before they can be replaced with variable values.
Double quotation marks are required for n and so on. n is output directly using single quotation marks.
The single quotes will directly display the program.
The characteristics of single quotes save time and the compiler will not translate them as variables.
We recommend that you use single quotes without variables.
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