C语言 想要知道这个程序流程图

#include <stdio.h> #include <conio.h> void fun(char *s) { int i, j; for (i = 0, j = 0; s[i] != '\0'; i++) if (s[i] >= '0' && s[i] <= '9') s[j++] = s[i]; s[j] = '\0'; } void main() { char item[80]; void clrscr(); printf("\nEnter a string :"); gets(item); printf("\n\nThe string is:%s\n", item); fun(item); printf("\n\nThestring of changing is:%s\n", item); }

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                       | start                 |
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                       | declare variables     |
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                       | read string           |
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                       | print original string |
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                                |
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                       | modify string         |
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                                |
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                       | print modified string |
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                       | end                   |
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