syntax

问题 My program intends to achieve this (A) Write a C function named larger() that returns the later date of any two dates passed to it. For example, if the dates 10/9/2001 and 11/3/2001 are passed to larger() , the second date would be returned. (B) Create the larger() function that was written for (A) in a complete unit. Store the date structure returned by larger() in a separate date structure and display the member values of the returned data structure. I am working on this problem for my C

问题 What is the difference between = and == ? I have found cases where the double equal sign will allow my script to run while one equal sign produces an error message. When should I use == instead of = ? 回答1: It depends on context as to what = means. == is always for testing equality. = can be in most cases used as a drop-in replacement for <- , the assignment operator. > x = 10 > x [1] 10 used as the separator for key-value pairs used to assign values to arguments in function calls. rnorm(n =

问题 The error message I got: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''word','group','selfnote') VALUES ('item','a','note to self')' at line 1 The PHP code is: $toq="INSERT INTO articles ('word','group','selfnote') VALUES ('$ttle','$wrdr','$snote')"; I was trying to find solutins, but they didn't seem to work as echoing gives: INSERT INTO articles ('word','group','selfnote') VALUES ('item','a','note to

问题 The error message I got: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''word','group','selfnote') VALUES ('item','a','note to self')' at line 1 The PHP code is: $toq="INSERT INTO articles ('word','group','selfnote') VALUES ('$ttle','$wrdr','$snote')"; I was trying to find solutins, but they didn't seem to work as echoing gives: INSERT INTO articles ('word','group','selfnote') VALUES ('item','a','note to

问题 python -c 'import sys; print "a"' works, and python -c 'for a in [1, 2, 3]: print a' works, but python -c 'import sys; for a in [1, 2, 3]: print a' fails with File "<string>", line 1 import sys; for a in [1, 2, 3]: print a ^ Why? EDIT My workaround: python -c 'import sys; print "\n".join([1, 2, 3])' (Luckily it worked for my real code too.) 回答1: You can only use ; to separate non-compound statements on a single line; the grammar makes no allowance for a non-compound statement and a compound

问题 This question already has answers here : Closure in Java 7 [closed] (7 answers) Closed 3 years ago . I have heard that closures could be introduced in the next Java standard that is scheduled to be released somewhere around next summer. What would this syntax look like? I read somewhere that introducing closures in java is a bigger change than generic was in java 5. Is this true? pros and cons? (By now we definitely know that closures not will be included in the next Java release) OR edit:

问题 This question already has answers here : Closure in Java 7 [closed] (7 answers) Closed 3 years ago . I have heard that closures could be introduced in the next Java standard that is scheduled to be released somewhere around next summer. What would this syntax look like? I read somewhere that introducing closures in java is a bigger change than generic was in java 5. Is this true? pros and cons? (By now we definitely know that closures not will be included in the next Java release) OR edit:

问题 I'm running some python code (pasted in) from the console, and getting an unexpected result. Here's what the code looks like: parentfound = False structfound = False instruct = False wordlist = [] fileHandle = open('cont.h') for line in fileHandle: if line is "": print "skipping blank line" continue if "}" in line: instruct = False index = line.index("}") wordlist.append(word) pass try: print wordlist except Exception as e: print str(e) After the for loop, I'd like to print the wordlist . No

问题 This question already has answers here : Why would a JavaScript variable start with a dollar sign? (16 answers) Closed 5 years ago . I'm learning jQuery by trying to understand other people's code. I ran into this: jQuery.fn.myFunc = function(options, callback) { //stuff jQuery(this)[settings.event](function(e) { var self = this, $self = jQuery( this ), $body = jQuery( "body" ); //etc. } //more stuff } My understanding is that $ refers to the jQuery object. So why put $ with $self and $body ?

问题 This question already has answers here : Why would a JavaScript variable start with a dollar sign? (16 answers) Closed 5 years ago . I'm learning jQuery by trying to understand other people's code. I ran into this: jQuery.fn.myFunc = function(options, callback) { //stuff jQuery(this)[settings.event](function(e) { var self = this, $self = jQuery( this ), $body = jQuery( "body" ); //etc. } //more stuff } My understanding is that $ refers to the jQuery object. So why put $ with $self and $body ?