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RocksonLee
2021-09-27 21:30:47
代码
```cpp int read() { int x = 0, w = 1; char ch = 0; while (ch < '0' || ch > '9') { // ch 不是数字时 if (ch == '-')
```cpp int read() { int x = 0, w = 1; char ch = 0; while (ch < '0' || ch > '9') { // ch 不是数字时 if (ch == '-')
