You can check the Case Sensitive checkbox to indicate the importance of upper and lowercase characters.

可以选中 Case Sensitive 复选框以表示区分大写和小写字符。

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Variables in Erlang must start with a capital letter and be followed by any combination of upper and lowercase letters and underscores (see Listing 28).

Erlang 中的变量必须以大写字母开头，后面是大写字母、小写字母和下划线的任意组合（参见 清单 28）。

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Additionally, the stroke weight difference between the upper and lowercase letters is less drastic than in the previous digital Eurostile fonts, allowing for more harmonious strings of text.

此外，大小写字母间的笔画粗细差异也被弱化了，这样文本流看起来会更和谐。

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Use a strong password which includes a combination of upper and lowercase letters and numbers.

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However the company offers tips for all of its users going forward, including using strong passwords that mix numbers and symbols with upper- and lowercase letters, not using the same password for multiple accounts, and disabling Java.

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Students spend a year building fundamentals like identifying upper- and lowercase letters and their sounds, recognizing numbers from 0 to 20, and learning physical education, music and art.

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