Im 正在寻找一个 JavaScript 常规表达式,该表达式将取代 sin(i/20*i) ,但不会取代 sin(i/20*i) 中的 。 在这种情况下,使用 (W)i 将总是给我 (i )。
您可以替换
i
需要 < code> > i 才能独立( 或至少不是在一串字母数字字符和下划线中) 。 < code @ /code> 是一个零维的主张, 因为它与字符 < / em > 之间的 < em> 位置匹配, 所以您不会捕捉更多所需的内容 。
通常的告诫是适用的。只有一个例子,很难给出一个适合您想要投放的任何数据的良好解决方案。 相应调整 。
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