Some programmers write pseudo-code before they begin writing their program.
有些程序员在他们开始编写程序之前会编写一些伪代码。
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Listing 3. Pseudo-code for the sum_list program.
清单3 . sum_list程序的伪代码。
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Some programs might never halt when run on themselves, though -- so let's use DOES-HALT to write pseudo-code for a program that checks to see what happens when a program is given itself as input.