C++ 转义字符文字中的撇号
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Escaping an apostrophe in a character literal
提问by boddhisattva
Could you please tell me how can one escape an apostrophe.
你能告诉我如何摆脱撇号吗？
I need it to process non apostrophe characters through file operations so when I encounter an apostrophe(') I can't just give ch!='''. It doesn't work. Could you please tell me the right format. Thank you..:)
我需要它通过文件操作处理非撇号字符，所以当我遇到撇号（'）时，我不能只给ch!='''. 它不起作用。你能告诉我正确的格式吗？谢谢..：）
回答by raj
Use \', for example:
使用\'，例如：
if ( ch != '\'' )
\'is an escape sequence for the apostrophe.
\'是撇号的转义序列。
Google for "escape sequence" to know more about it.
谷歌搜索“转义序列”以了解更多信息。
回答by Daniel LeCheminant
You can escapea single quote as
您可以将单引号转义为
'\''
for example
例如
while(*p && *p != '\'') p++;
This is an escape sequence; the backslash tells the compiler that following 'normal character, and not as one of the single quotes that you surround a character with.
这是一个转义序列；反斜杠告诉编译器跟随'正常字符，而不是作为将字符括起来的单引号之一。
