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修复初始命令行切换问题 (#66)
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@ -117,7 +117,7 @@ void clear_command(int count, char *buf)
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* @brief 切换命令(写入到缓冲区)
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*
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* @param buf 缓冲区
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* @param type 如果为1,就向下,如果为-1,就向上
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* @param type 如果为1,就向上,如果为-1,就向下
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*/
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void change_command(char *buf, int type)
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{
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@ -126,7 +126,18 @@ void change_command(char *buf, int type)
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if (current_command_index < 0)
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current_command_index++;
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if (current_command_index >= count_history - 1)
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current_command_index = count_history - 2;
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{
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//初始只含一条空历史记录,需单独考虑
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if(count_history == 1)
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{
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//防止出现多条空历史记录
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if(current_command_index > 1)
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current_command_index = 1;
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}
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else
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current_command_index = count_history - 2;
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}
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strcpy(buf, history_commands[current_command_index]);
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printf("%s", buf);
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put_string(" ", COLOR_BLACK, COLOR_WHITE);
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