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📜  str[i] - '0' - C++ 代码示例

📅  最后修改于: 2022-03-11 14:44:45.985000             🧑  作者: Mango

代码示例1
The part str[i] - '0' takes the ASCII character of the corresponding digit 
which are sequentially "0123456789" and subtracts the code for '0' from the 
current character. This leaves a number in the range 0..9 as to which digit is 
in that place in the string.