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in Technique[技术] by (71.8m points)

string.replace 截取字符串 得不到预期的结果?

使用的时同一个方法 截取的结果预期不同

image.png
"moduleType_7556304c7b9f9b325c6e309c1c84d5a2".replace(/^(1*)_/,'')

"functionModuleList_7556304c7b9f9b325c6e309c1c84d5a2".replace(/^(1*)_/,'')

我估计是因为字符串太长导致的 所以我又敲着试了下 结果如下
image.png

但是 "moduleType_7556304c7b9f9b325c6e309c1c84d5a2".replace(/^(1*)_/,'') 能够得到预期的结果 字符串也比前面的长
接着有试了一下给他分别加 a b s 结果又不一样
a b 得到预期结果 加s 就得不到预期

image.png

image.png


  1. s ?

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我觉得你要的应该是/^([^s]*)_/


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