class Solution {
public:
void replaceSpace(char *str,int length) {
}
};
做完看了下讨论的代码基本都是从后往前替换，也行但是这样就要扫两遍了
AC代码：
class Solution {
public:
void replaceSpace(char *str,int length) {
char str2[1000];
int num = 0;
for(int i = 0; i < length; i++) {
if(str[i] == ‘ ‘) str2[num++] = ‘%‘, str2[num++] = ‘2‘, str2[num++] = ‘0‘;
else str2[num++] = str[i];
}
strcpy(str, str2);
}
};
原文：https://www.cnblogs.com/Hyouka/p/9252978.html