char dog[5] = {\'a\',\'b\',\'c\',\'d\',\'e\'};//not a string
char cat[5] = {\'a\',\'b\',\'c\',\'d\',\'\0\'};//a string
c-风格字符串以空字符结尾,空字符被写作\0,其ASCII码为0.
char dog[5] = {\'a\',\'b\',\'c\',\'d\',\'e\'};//not a string
char cat[5] = {\'a\',\'b\',\'c\',\'d\',\'\0\'};//a string
c-风格字符串以空字符结尾,空字符被写作\0,其ASCII码为0.
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