模拟实现兼容低版本IE浏览器的原生bind()函数功能: 代码如下: if(!Function.prototype.bind){ Function.prototype.bind=function(oThis){ if (typeof this !== 'function'){ throw new TypeError('调用者不是当前函数对象'); } var aArgs = Array.prototype.slice.call(arguments,
Implement strstr() 实现strstr函数功能 whowhoha@outlook.com Question: Implement strstr(). Returns the index of the first occurrence of needle in haystack, or –1 if needle is not part of haystack. int strStr(string haystack, string needle) { for (int i = 0;
输入 show variables like '%func%'; 命令 会看到 log_bin_trust_function_creators 的状态,如果是OFF表示自定义函数功能是关闭的 输入命令 set global log_bin_trust_function_creators=1; 可将 log_bin_trust_function_creators 开启自定义函数功能 但是这样设置是一个临时的方案,因为mysql自动重启后状态又会变为OFF,所以需要在 在服务启动时加上 “--log
kiki's game Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 40000/1000 K (Java/Others) Total Submission(s): 4972 Accepted Submission(s): 2908 Problem Description Recently kiki has nothing to do. While she is bored, an idea appears in his m
Description Bamboo Pole-vault is a massively popular sport in Xzhiland. And Master Phi-shoe is a very popular coach for his success. He needs some bamboos for his students, so he asked his assistant Bi-Shoe to go to the market and buy them. Plenty of
The Euler function Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description The Euler function phi is an important kind of function in number theory, (n) represents the amount of the numbers which are sm
Given the value of N, you will have to find the value of G. The definition of G is given below:Here GCD(i, j) means the greatest common divisor of integer i and integer j.For those who have trouble understanding summation notation, the meaning of G i
应用 MySQL 时,会遇到不能创建函数的情况.出现如下错误信息: ERROR 1418 : This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable) 那是因为没有