Electron microscopy
 
Statement in DM
- Practical Electron Microscopy and Database -
- An Online Book -
Microanalysis | EM Book                                                                                   http://www.globalsino.com/EM/        


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Statements are the fundamental units of script execution in DM and C++. The statements within a script is evaluated in default order. In C++, the semicolon is a statement terminator. However, in DM scripts, a statement terminates simply by changing a line, namely DM recognizes the end of a line as a terminator, unless there is a backslash sign as discussed in the table below.

\ (backslash sign) Split long statement lines into multiple lines: the expression is continued on the next lines. Example

Some special, control flow statements are:
         i) if,
         ii) while,
         iii) for.

Other statements, such as block statement are used often as well. Variables declared within a block are local to that block.  They are not global to all statements in a script, that is, they are not globally accessible.

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