用C產生簡單格式的xml

代碼很簡單，直接貼了。

#include <stdio.h>//author: dengzhaoqun//date: 2012/03/05static FILE *out = NULL;static int tabs = 0;void set_out_fp(FILE *fp){out = fp;}void put(char *str){fprintf(out, "%s", str);}void put_head(char *head){put("<?");put(head);put("?>\n");}void out_tabs(){int i;for(i=0; i < tabs; i++){put("\t");}}void tag_start(char *tag){out_tabs();put("<");put(tag);put(">\n");tabs = tabs + 1;}void tag_end(char *tag){tabs = tabs - 1;out_tabs();put("</");put(tag);put(">\n");}void tag_value(char *tag, char *value){out_tabs();put("<");put(tag);put("\t");put("\"value\"=\"");put(value);put("\"");put("\t/>\n");}void tag_value_num(char *tag, long value){out_tabs();put("<");put(tag);put("\t");put("\"value\"=");fprintf(out, "%d", value);put("\t/>\n");}int main(){FILE *fp = fdopen(1, "a");set_out_fp(fp);put_head("xml version='1.0' encoding=\"GBK\"");tag_start("投遞資訊");tag_start("硬體");tag_value_num("網卡", 1);tag_end("硬體");tag_end("投遞資訊");fclose(fp);return 0;}