差异查看器
免费在线使用 差异查看器 无需安装即可使用工具
Understanding Diff Viewer
The Diff Viewer tool 幫助您 compare two text files and identify differences line by line. It uses the Longest Common Subsequence (LCS) algorithm to accurately detect additions, deletions, and unchanged lines.
How to Compare Text
輸入您的 original text in the left panel and modified text in the right panel. 點擊 Compare 按鈕 to generate a diff. The results show added lines in green, removed lines in red, and unchanged lines without highlighting.
Comparison Options
You can customize the comparison by enabling 'Ignore Whitespace' to treat multiple spaces as single spaces, or 'Ignore Case' to make the comparison case-insensitive. These options help identify substantive changes rather than formatting differences.
▶What algorithm is used for diff generation?
The tool uses the Longest Common Subsequence (LCS) algorithm with dynamic programming, which 提供 optimal line-by-line comparison accuracy.
▶Can I compare files of different lengths?
Yes, the diff viewer handles files of any length. It will correctly identify which lines were added or removed regardless of file size differences.
▶What do the different colors mean?
Green highlights indicate lines that were added (present in modified text but not in original). Red highlights indicate lines that were removed (present in original but not in modified). Unhighlighted lines are unchanged.
▶有限制嗎 to file size?
For optimal performance, it's recommended to compare files under 10,000 lines. Larger files may work but could be slower to process.
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